《机电专业英语》考试试题
机电英语试卷
定期检查
太阳热的吸收量
Solar heat gain
production tasks
生产任务
通风气流
Ventilation air
road tax
道路税
头戴式话筒
Headband microphone
robotics technology
机器人技术
外围设备
Peripheral equipment
过去,由于数据传输速度的局限性,几项移动网络无法实现的新应用借助于3G成为现实。这些新应用涉及网络浏览、文件传输以及居家自动化。居家自动化技术可以使人们远程接入和遥控住宅设施。
(3) The power supply for the fire alarm system should be backed up by the emergency generator. If a generator is not provided, a battery system with automatic charging features should be provided.
(2) If ac power is available, all drives requiring constant speed should use squirrel-cage induction or synchronous motors because of their ruggedness and lower cost. Drives requiring varying speeds, such as fans, blowers, or pumps, may be driven by wound-rotor induction motors.
机电专业英语试卷C答案
Answer of quiz 3Ⅰ. Translate the following words or phrases into Chinese or English.(2×10)1.机械工程学2. interdisciplinary subject3.自动化平台4.Ethernet communication5.节约能源6.precise automatic regulation7.电器驱动8.mechanical energy9.压力补偿泵10.hi-lo circuitII. Fill in the blanks with the suitable words or phrases given below.(3×6+2)1. an early invention2. the early fifth century3. by the Romans4. even further5. become tired of6. in factIII. Translate the Chinese parts given in the brackets into English.(4×10)1. they are being called “intelligent”or “smart” machines2. in the design and manufacture of products and processes.3. consists of a sequence of mnemonic codes of the commands4. but rather they are bits in a register that you can use simulate a relay5. the implementation of sophisticated modern control theory in AC motor drives6. The flow of fluids may be classified in many ways7. All hydraulic systems depend on Pascal’s law8. Regulating pump pressure from a remote station can be accomplished9. pump output at the preset pressure is only sufficient to make up for leakage10. This requires removing the palletIV. Translate the following paragraphs. (20)将来,微机利用其计算能力来执行通过现代控制理论控制的交流电机,并完成日常诊断和自检系统。
机电仪类专业英语题库
F F1327C256 is a CMOS 256K bit EPROM. The device is organized as 32K words by 16 bits .T T63A disadvantage of connecting lamps in series is that if one lamp blows all of them will go out because the circuit is broken.T T43A lamp may be used to test a rectifier diode, but do not use a lamp to test a signal diode because the large current passed by the lamp will destroy the diode!T T21 A PIC is a Programmable Integrated Circuit microcontroller, a 'computer-on-a-chip'.F F101 A products made of interchangeable parts is slowly assembled, higher in cost.T T68 A relay is an electrically operated switch.T T100 A resistor placed in a circuit will resist the passage of electrical current through it.T T94 A thermistor is an input transducer (sensor) which converts temperature (heat) to resistance. T T99 A transformer consists of two coils (often called 'windings') linked by an iron core.T82A transistor may be used as a switch (either fully on with maximum current, or fully off with no current) and as an amplifier (always partly on).T4 A warning notice has to be set up on the equipment while repairing.F46All rectifier diodes are made from silicon and therefore have a forward voltage drop of 0.2V.T98An audio (AC) signal with a constant DC signal will make a large current flow through the Loudspeaker due to its low resistance, possibly damaging both the speaker and the driving circuit.F105Automatic control systems are a product of this generation.T6Be careful not to damage or scar the inner surface finish of the bottom sub.T133Before logging, inspect the cable drum assembly for apparent damage or cracked welds.T131Before starting engine ,we must check the batteray cables and terminals for corrosion or loose connection. F111Cams are the most versatile lathe.T34Capacitors are also used in filter circuits because capacitors easily pass AC (changing) signals but they block DC (constant) signals.T33Capacitors are used to smooth varying DC supplies by acting as a reservoir of charge.T32Capacitors store electric charge.T8Check the cable and wire for proper connections both before and after repair.F125Checking the engine oil level,we don't wipe dipstick clean ,we can get a good reading.F67Connecting several LEDs in parallel with just one resistor shared between them is generally a good idea.T69Current flowing through the coil of the relay creates a magnetic field which attracts a lever and changes the switch contacts.F28Current is measured with an voltmeter, connected in series.T27Current is the rate of flow of charge.T31Currents add up for components connected in parallel.T29Currents are the same through all components connected in series.T57Datasheets are available for most ICs giving detailed information about their ratings and functions. F39Diodes allow electricity to flow in two directions.T77Electrical energy is converted to heat when current flows through a resistor.F14EPROM can be read and writen.F112Form the fits point of view, a key is referred to as the hole and the keyway as the shaft.T44General purpose signal diodes such as the 1N4148 are made from silicon and have a forward voltage drop of 0.7V. T124Going downhole,screw the adjustable uphole torque control valve fully clockwiseF150Heat treatment can decrease material Hardness.T149Heat treatment can increase material Hardness.F103High carbon steel is softer than tempered steel, but it is much more easier to work.T128Hot exhaust system parts can cause serious bodily injury.F114Hot working is defined as plastic deformation below the recrystallization temperature.T121Hydraulic oil temperature is controlled by the thermostatic bypass valve and hydraulic system heat exchanger.T141Hydrostatic charge fluid pressure is measured by the CHARGE PRESSURE GAUGE.T88IC (chip) pin diagrams show the view from above.T54ICs (chips) are easily damaged by heat when soldering ,so we usually use an IC holder(socket).T135If any fuel leaking are found above exhaust system, shut down engine immediately and repair.F118If hoist parking brake control knob is pushed,the brake bands located on each side of the hoist drum tighten and hold the drum.T126If the engine oil level has reached between the high and low mark,the engine oil level is normal.F110If the follower lose contact with the cam, it will natural work.T134If there is no engine oil pressure or low engine oil pressure, stop the engine immediately.T55If you need to remove an IC it can be gently prised out of the holder(socket) with a small flat-blade screwdriver.T85In addition to standard (bipolar junction) transistors, there are field-effect transistors which are usually referred to as FETs.T130Inspect the engine radiator , insure that core is clean and free of debris.T129Inspect the engine radiator cap, verify that the seals and spring are good.T5Install the retaining ring in the bottom sub using the modified pliers.T52Integrated Circuits are complex circuits which have been etched onto tiny chips of semiconductor (silicon). T51Integrated Circuits are usually called ICs or chips.T36It is easy to find the value of electrolytic capacitors because they are clearly printed with their capacitance and voltage rating.T9It is forbidden that using a high-volt insulation tester to measure circuit insulation T113It is important that the product be designed with material.F24It is impossible to have voltage without current, current cannot flow without voltage.F75kF61Lamps can not be connected either way round in a circuit.T59Lamps emit light when an electric current passes through them.T64LEDs means Light Emitting DiodesF65LEDs need not a resistor in series to limit the current to a safe value for testing it.T58Logic ICs process digital signals and there are many devices, including logic gates, flip-flops, shift registers, counters and display drivers.T97Loudspeakers are output transducers which convert an electrical signal to sound. T115Machine parts are maunfactured so they are interchangeable.T102Materials differ widely in physical properties,machinability characteristics,methods of Forming,and possibe service life.T80Multi-way switches have 3 or more conducting positions.T17Normally,the TTL IC use the 5Vdc power supply.T79ON-OFF SPST switch means Single Pole, Single ThrowT15Operational amplifier can be used as a part of an active filter.F96Piezo transducers are output transducers which convert an electrical signal to heat.F87Please note that transistor lead diagrams show the view from top with the leads towards you.T123Pre-start checks,make sure the drum brake is on and both hoist control lever are in the neutral position. T41Rectifier diodes are quite robust and no special precautions are needed for soldering them.T45Rectifier diodes are used in power supplies to convert alternating current (AC) to direct current (DC), a process called rectification.F71Relays and transistors compared ,relays can only switch DC, transistors can switch AC and DC. F127Remove the engine radiator cap when engine is running.T76Resistors in Parallel will get a smaller value.T73Resistors may be connected either way round. They are not damaged by heat when soldering.F72Resistors restrict the flow of electric voltage.T11Rig safety can be improved by using MWD measurements in real time to avoid potentially dangerous well control problems.F62Several lamps can be successfully connected in parallel provided they all have identical voltage and power (or current) ratings.T104Smooth flat belts and V belts depend on friction on the pulleys and some slippage is inherent in their operation.T12Sperry-Sun’s FEWD measurements can be used in horizontal wells to steer a well for maximum formation exposure in the productive part of the reservoir.T56Static sensitive ICs will be supplied in antistatic packaging with a warning label.F78Switch contacts are rated with a maximum voltage and current, and there should be same ratings for AC and DC. F106The all material may have higher strength.T83The amount of current amplification of a transistor is called the current gain, symbol h FE.T47The bridge rectifier have four leads or terminals: the two DC outputs are labelled + and -, the two AC inputs are labelled "~".F22The CMOS circuitry used in the 74HC series ICs means that they are static sensitive. Touching a pin while charged with static electricity is always safe.T66The colour of an LED is determined by the semiconductor material, not by the colouring of the 'package' (the plastic body).F132The drum bearing don't need to be greased separately T109The element must be kept stiff and rigid.T122The engine must be shut down immediately if the water temperature gauge registers higher than normal coolant temperatures.T140The ENGINE STOP CONTROL is used to stop the flow of diesel fuel to the engine.T139The ENGINE THROTTLE CONTROL increases and decreases the speed of the diesel engine.T137The FREQUENCY METER measures the frequency of the diesel generator.T90The heat sink of power transistor helps to dissipate (remove) the heat by transferring it to the surrounding air. F117The hoist control lever have two positions,uphole and downhole.F1The hoist in the worker-house can be used by everyone to move the logging tools.F20The Input Impedance of FET transistor is very low.T18The Intel 87C51 is a single-chip control-oriented microcontroller which is fabricated on Intel's reliable CHMOS EPROM technology.F143The machine for manufacture charge holder tube is CNC lathe.T144The machine for manufacture charge holder tube is laser cutter machining.T148The material Hardness commonly denotes "Rockwell hardness " or "Brinell hardness".T146The material mechanical properties of perforating gun include: Tensile Strength,Yield Strength,Elongation,Reduction of Area,Hardness etc.F147The material mechanical properties of perforating gun only include Tensile Strength.T142The material of charge holder tube is welder tubing.F19The negtive pulse makes the resistance between pin D and pin S of N-Channel MOSFET very low. F3The O-Ring oil can be replaced by thread compound.F138The output voltage of diesel generator is normally 120V DC.T145The perforating gun can match charges including deep perforate, super deep, big hole, super big hole and low debris or no debris types.F53The pins of ICs are numbered clockwise around the IC (chip) starting near the notch or dot.T119The speed range control switch has no effect over the back-up hoist control.T136The SPEED RANGE CONTROL SWITCH is used as a course speed adjustment by the operator.F108The surface and the pitch circle and the bottom of the tooth.T60The voltage and power (or current) ratings are usually printed or embossed on the body of a lamp.T35There are many types of capacitor but they can be split into two groups, polarised and unpolarised F84There are two types of all transistors, NPN and PNP.T95Thermistors with a negative temperature coefficient (NTC) means their resistance decreases as their temperature increases.T16These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.T10Thread protectors should always be installed when transporting instrument to aid in securing or handling tool. T70Transistors and ICs must be protected from the brief high voltage produced when a relay coil is switched off.F81Transistors are used to amplify current only.F89Transistors can not be damaged by heat when solderingF86Transistors have three leads which be connected no matter the way round.F37Unpolarised capacitors are small value and must be connected correct way round.T38Variable capacitors are mostly used in radio tuning circuits and they are sometimes called 'tuning capacitors'. T93Variable resistors are often called potentiometers in books and catalogues.T92Variable resistors consist of a resistance track with connections at both ends and a wiper which moves along the track as you turn the spindle.T23Voltage and Current are vital to understanding electronics, but they are quite hard to grasp because we can't see them directly.F25Voltage is measured with a voltmeter, connected in series.F30Voltages are the same across all components connected in series.T107We can alter the characteristics of steel in various ways.T116We can alter the characteristics of steel in various ways.F120we increase engine throttle control,the injectors will be delived little amount of fuel.T7We must apply Lubriplate to the threads of the pressure housingF40When a reverse voltage is applied a perfect diode does not conduct, no diodes leak current .F2When we make the insulate check,either megger or multimeter can be used.T T91You can use a multimeter or a simple tester (battery, resistor and LED) to check the transistorF F42You can use a multimeter or a simple tester (battery, resistor and LED) to check that a diode conducts in two directions.F F74You may have noticed that resistors are available with every possible value.T T49Zener diodes are designed to 'breakdown' in a reliable and non-destructive way so that they can be used in reverse to maintain a fixed voltage across their terminals.T T48Zener diodes are used to maintain a fixed voltage.F F50Zener diodes can not be distinguished from ordinary diodes easily .T T26Zero volts could be any point in the circuit, but to be consistent it is normally the negative terminal of the battery or power supply.判断题答案序号中中难难易中中中中中难难易中难易中难中中易中易易易易易易中中中中易难易易中易易中易易难中中中易难难难易易中易中易中中难中易易易易易中中易易难中中中易中难易中中难易易难易中易难中中易易难中易中难难易中难难易程度。
(完整版)机电专业英语复习题及答案
机电专业英语期末复习试题一.选择题1. If all points in a linkage move in parallel planes the system undergoes plan ar motion and the linkage may be described as a ______ .A。
planar motion B. planar linkage C. joints D. slide2. Though frame material and design should handle damping,_____ are sometimes built into frame sections to handle specific problems.A 。
beams B. holes C。
dampers D。
screw3. The maximum allowable deflection of a shaft ______ determined by critical sp eed, gear,or bearing requirements。
A。
often B. must C。
was D. is usually4. We will have to _____ to better and better solutions as we generate more information。
A. repeat many times B。
iterating C。
iterate D。
try ways5。
If a product configuration is _______ specified and then examined to determ ine whether the performance requirements are met。
A。
finally B. tentatively C。
机电专业英语(习题答案)
《机电专业英语》习题答案Lesson 11 CNC MachinesII. Are the following statements true or false according to the text?1. F2. F3. F4. TIII. Translation1.普通机床能够完成的传统加工过程,数控加工中心都能完成,甚至更好,包括各种铣削(平面铣,轮廓铣,槽铣),钻孔,攻螺纹,铰孔,镗孔和沉孔。
2.计算机数控转塔式六角孔冲床能控制各种冲压组合,完成不同形状和尺寸的冲孔在金属板上。
3.电火花加工是为大家所知较少的一种计算机数控操作,在制造加工中和其它制造过程紧密相关。
4.计算机数控的自动化控制在满足不同产品生产需要时,为加工过程中刀具的装夹提供了更高的灵活性。
5.通常在生产零件时需要多种操作,一系列的计算机数控机床被组合在一个工位上,一般也称作为一个单元。
Lesson 12 Motion control - the heart of CNCII. Are the following statements true or false according to the text?1. F2. F3. TIII. Translation1.这就好像计算出手柄在夹具台转多少次夹钳正好移动一英寸。
2.控制部分将自动决定每个轴驱动马达和滚珠丝杆旋转多少次使轴线到达命令的目标点。
3.不同于类似时间和产量概念的增量,计算机数控机床的矩形坐标系统进入度量领域增量。
4.对于任何命令除了非常容易地决定当前位置,在绝对模式中操作的另一好处就是动作命令过程中产生的错误(只影响这一个命令的动作)。
Lesson 13 FANUC System Operation Unit—CRT/MDI PanelII. Are the following statements true or false according to the text?1. FIII. Translation1.当地址键或者数字键被按下以后,被插入字母和数字位置后以“_”显示。
机电一体化专业英语
科目:机电一体化专业英语使用班级:使用班级:单选题单选题1 、10xx means that it is a plain carbon steel 1,10XX意味着它是一个普通的碳素钢 C the second digit indicates that there is no modification in the alloys. 第二个数字表明,有没有修改的合金。
A 、which A,这B 、when B,当C 、where C,其中D 、that ,,2 、These steels 2,这些钢材 B high strength and also high strength to weight ratio, good c orrosion resistance. 高强度和高强度重量比,好的C orrosion电阻。
A 、exhibits 一,展品B 、exhibit ,表现出C 、exhibited C,展出D 、are exhibiting D ,展示3 、This property, also called 3,此属性,也被称为C , is related to the resistance of the steel to the softening effect of heat. ,是有关钢材的耐热软化效应。
A 、cold-hardness 一,冷硬度B 、cold-shortness B,冷,气短C 、hot-hardness 热硬度,D 、brittle condition D ,脆条件4 、These metals 4,这些金属 A in a soft condition, heat-treated to gain hardness, and then finish machined with a grinding or lapping process that can handle the hardness. 在软条件下,热后获得的硬度,然后完成加工与磨削或研磨的过程中,可以处理的硬度。
机电专业英语试卷
机电专业英语试卷2022年-2022年-1机电专业英语考试试卷试卷总分:100分考试形式:开卷班级:姓名:学号:一、单词翻译(1’×30)把下列单词或词组翻译成英语,写在答题卡上1. 部件2. 优化4. 应变5. 接口7. 制图学8. 自动的3. 应力6. 重新装配9. 发电机10. 检测11. 紧急情况12. 安装13. 疏散14. 放电16. 消耗17. 密度19. 偏心20. 运输15. 对比18. 基础设施21. 可行的22. 调整23. 轮滑剂24. 检查25. 磨损26. 故障28. 起重机29. 控制器27. 维护30. 电机二、阅读理解(2’×20)本部分共有4篇文章,每篇文章后有5道题目,从ABCD四个选项中选择正确答案,写在答题卡上。
Passage 1History and Development of mechanical engineeringApplications of mechanical engineering are found in the records of many ancient and medieval societies throughout the globe. In ancient Greece, the works of Archimedes (287 BC - 212 BC) and Heron of Alexandria (10 -70 AD) deeply influencedmechanics in the Western tradition. In China, Zhang Heng (78 - 139 AD) improved a water clock and invented a seismometer, and Ma Jun(200 - 265AD) invented a chariot with differential gears.During the years from the 7th to the 15th century, there were remarkable contributions from Arabians in the field of mechanical technology. Al Jaziri, who was one of them, wrote his famous “Book of Knowledge of lngenious Mechanical Devices“ in 1206 in which he presented many mechanical designs. He is also considered to be the inventor of such mechanical devices that now form the very basics of mechanisms, such as crank and cam shafts.During the early 19th century in England and Scotland, the development of machine toolsled mechanical engineering to develop as a separate field within engineering, providing manufacturing machines and the engines to power them. The first British professional society of mechanical engineers was formed in 1847,thirty years after civil engineers formed the first such professional society. In the United Slates, the American Society of Mechanical Engineers (ASME) was formed in 1880, becoming the third such professional engineering society, after the American Society of Civil Engineers(1852) and the American Institute of Mining Engineers (1871 ).The first school in the United States to offer an engineering education was the United States Military Academy in 1817. Education in mechanical engineering has historically been based on a strong foundation in mathematics and science.The field of mechanical engineering is considered among the broadest of engineering disciplines. The work of mechanical engineering ranges from the depths of the ocean to outer space.31. Which of the following country is not mentioned by the author in records of ancient and medieval societies where applications of mechanical engineering are found?A. GreeceB. ChinaC. Arabian countriesD. England32. who is considered to be the inventor of mechanical devices that form the basics of mechanism?A. Al JaziriB. Ma JunC. ArchimedesD. Zhang Heng33. In which of the following countries was the first professional society of mechanical engineers established?A. United StatesB. The Great BritainC. GreeceD. China34. In which year did the British form the first professional society like the British society of mechanical engineers?A. 1847B. 1817C. 1877D. 187435. Which of the following statements is true, according to the passage?A. Mechanical engineering is a new discipline rather than an old one.B. Al Jaziri is the inventor of crank and cam shaft.C. Education in mechanical engineering has been based on a strong foundation of mathematics and science.D. Mechanical engineering has nothing to do with oceans or outer space.Passage 2Engineering materialsCommon engineering materials are normally classified as metals and nonmetals. Metals may conveniently be divided into ferrous and non-ferrous metals.Important ferrous metals for the present purpose are:(i) Cast iron.(ii) Wrought iron.(iii) Steel.Ferrous MaterialsCast iron: It is an alloy of iron, carbon and silicon and it is bard and brittle.Carbon content may be within 1.7% to 3% and carbon may be present as free carbon or iron carbide Fe3C.Wrought iron: This is a very pure iron where the iron content is of the order of 99. 5%. It is produced by re-melting pig iron and some small amount of silicon, sulphur, or phosphorus may be present. It is tough, malleable and ductile and can easily be forged or welded. It cannot however take sudden shock. Chains, crane books, railway couplings and such other components may bemade of this iron.Steel: This is by far the most important engineering material and there is an enormous variety of steel to meet the wide variety of engineering requirements. Steel is basically an alloy of iron and carbon in which the carbon content can be less than 1.7% and carbon is present in the form of iron carbide to impart hardness and strength. Two main categories of steel are plain carbon steel and alloy steel.(i) Plain carbon steel: The properties of plain carbon steel depend mainly on the carbon percentages and other alloying elements are not usually present in more than 0. 5% to 1%, such as 0.5% Si or 1% MD, etc.(ii) Alloy steel: these are steels in which elements other than carbon are added in sufficient quantities to impart desired properties, such as wear resistance, corrosion resistance, electric or magnetic properties. Chief alloying elements added are usually nickel for strength and toughness, chromium for hardness and strength, tungsten for hardness at elevated temperature, vanadium for tensile strength, manganese for high strength in hot rolled and heat treated condition, silicon for high elastic limit.36. Which of the following dose not belong to the group of ferrous metals?A. Cast ironB. Wrought ironC. BronzeD. Steel37. Which of the following is not included as a component for producing wrought iron?A. SiliconB. SulphurC. PhosphorousD. Zinc38. which is the most important engineering material, according to the passage?A. Cast ironB. SteelC. Wrought ironD. Aluminium39. According to the passage, what quality will be imparted when carbon is added to iron?A. StrengthB. ResilienceC. ElasticityD. Plasticity40. which of the following statements is true according to thepassage?A. In cast iron the carbon content may be more than 3.7%B. Wrought iron is tough, malleable and ductile and can not be forged or welded.C. In steel carbon is present in the form of iron carbideD. In plain carbon steel, except for carbon, other alloying elements are usually present in more than 0. 5% to 1%.Passage 3HydraulicsThe word “hydraulics” generally refers to power produced by moving liquids. Modern hydraulics is defined as the use of confined liquid to transmit power, multiply force, or produce motion. Though hydraulic power in the form of water wheels and other simple devices has been in use for centuries, the principles of hydraulics weren’t formulated into scientific law until the 17th century. It was then that French philosopher Blaise Pascal discovered that liquids cannot be compressed. He discovered a law which states: Pressure applied on a confined fluid is transmitted in all directions with equal force on equal areas.Hydraulic systems contain the following key components.Fluid - can be almost any liquid. The most common hydraulicfluids contain specially compounded petroleum oils that lubricate and protect the system from corrosion.Reservoir or tank - acts as a storehouse for the fluid and a heat dissipater.Hydraulic pump - converts the mechanical energy into hydraulic energy by forcing hydraulic fluid, under pressure, from the reservoir into the system.Fluid lines or pipes - transport the fluid to and from the pump through the hydraulic system. These lines can be rigid metal tubes, or flexible hose assemblies. Fluid lines can transport fluid under pressure or vacuum (suction).Hydraulic valves - control pressure, direction and flow rate of the hydraulic fluid.Actuator - converts hydraulic energy into mechanical energy to do work. Actuators usually take the form of hydraulic cylinders. Hydraulic cylinder are used on agricultural, construction, and industrial equipment.In actual hydraulic systems, Pascal‘s law defines the basis of the results which are obtained from the system. Thus, a pump moves the liquid in the system. The intake of the pump is connected to the reservoir or tank, atmospheric pressure,pressing on the liquid in the reservoir, forces the liquid into the pump. When the pump operates, it forces liquid from the tank into the discharge pipe at a suitable pressure. The flow of the pressurized liquid discharged by the pump is controlled by valves. These control functions are used in most hydraulic systems: 1 control of the liquid pressure, 2 control of the liquid flow rate, and 3 control of the direction of flow of the liquid.Hydraulic drives are used in preference to mechanical systems when 1 power is to be transmitted between points too far apart for chains or belts; 2 high torque at low speed is required;3 a very compact unit is needed;4 a smooth transmission, free of vibration, is required;5 easy control of speed and direction is necessary; and6 output speed is varied steplessly.41. when was the principles of hydraulics formulated into science laws?A. In 15th centuryB. In 16th centuryC. In 17th centuryD. In 18th century42. In which way can fluid lines transport fluid?A. under pressureB. Under vacuumC. both under pressure and vacuumD. not given43. The operation of which of the following componentswould force the liquid from the tank to the discharge pipes?A. PumpB. ValveC. ActuatorD. Reservoir or tank44. which of the following components of a hydraulics system controls the flow of the pressurized liquid discharged by the pump?A. Reservoir or tankB. Fluid lines or pipesC. ValvesD. Actuator45. Hydraulic drives are used in preference to mechanical systems whenA. Power is to be transmitted between close pointsB. high torque at high speed is requiredC. Easy control of speed and direction is not necessaryD. Output speed is varied steplessly.Passage 4V-beltThe rayon and rubber V-belt are widely used for power transmission. Such belts are made in two series: the standard V-belt and the high capacity V-belt. The belts can be used with short center distances and are made endless so that difficulty with splicing devices is avoided.First, cost is low, and power output may be increased byoperating several belts side by side. All belts in the drive should stretch at the same rate in order to keep the load equally divided among them. When one of the belts breaks, the group must usually be replaced. The drive may be inclined at any angle with tight side either top or bottom. Since belts can operate on relatively small pulleys, large reductions of speed in a single drive are possible.Second, the included angle for the belt groove is usually from 34°to 38°.The wedgingaction of the belt in the groove gives a large increase in the tractive force developed by the belt.Third, pulley may be made of cast iron, sheet steel, or die-cast metal. Sufficient clearance must be provided at the bottom of the groove to prevent the belt from bottoming as it becomes narrower from wear. Sometimes the larger pulley is not grooved when it is possible to develop the required tractive force by running on the inner surface of the belt. The cost of cutting the grooves is thereby eliminated. Pulleys are on the market that permit an adjustment in the width of the groove. The effective pitch diameter of the pulley is thus varied, and moderate changes in the speed ratio can be secured.46. why are belts made endless?A. To reduce costB. easier to manufactureC. To avoid splicing devicesD. To produce bigger tractive force47. why is large reductions of speed in a single V-belt drive possible?A. Because pulleys are very bigB. Because V-belt can produce large tractive forceC. Because belts can operate on large pulleysD. Because belts can operate on small pulleys48. what can V-belt be made of?A. SteelB. RayonC. PlasticD. Iron49. When one of the belts breaks, what should be done?A. NothingB. Replace the broken one with another oneC. Replace the belt groupD. Break another one50. which of the following statements is true, according to the passage?A. Power output may be decreased by operating several belts side by sideB. The drive may be inclined at any angle with tight side either top or bottomC. sometimes the smaller pulley is not grooved when it is possible to develop the required tractive force by running on the inner surface of the belt.D. Pulleys are on the market that permit an adjustment in the depth of the groove.三、汉英翻译(30’)把以下句子括号内的中文翻译成英语,写在答题卡上1. This computer______________________________________________(并没有与制造过程直接连在一起) ( Be linked to)2. _______________________________________________ (紧随模拟和数码技术之后),multimediaservices add high speed data transfer to mobile devices. (Following on the heels of) .3. The emergency generator_____________________________________________(用来支持火警系统的电力供应). (back up)4. There exist quite a few barriers and ___________________________________________________________________________________ ( 据此看来电瓶巴士的商业化生产目前还不可能). (in this light,out of the question)5. The moors_______________________________ (应该定期检查). (on basis)。
机电专业英语试卷B
Quiz of Part 2. Translate the following words or phrases into Chinese or English.(2×10)1. engine lathe __________________2. _________________ 维修车间3.point to point NC ________________________4.____________________ 制造设备5.automatic tool changing _________________6.旋转加工______________________7.regardless of __________________8.__________________ 脆性工件9.dislocation density _________________________ 10._________________________ 晶粒生长×6)Forging can 1 : mass conserving, solid state of work material (metal), and mechanical 2 forging processes are used, and Fig.12-1 (a) the most common of these: drop forging. The metal 3 a suitable working 4 . [1]Excess material is squeezed out between the die faces at the periphery as 5 . When the term forging is used, it usually means forging. Cold forging has 6 . The material loss in forging processes is usuallyIII. Translate the Chinese parts given in the brackets into English.(4×10)1.________________________________________(许多大型的车床配备在普通车间中通常看不到的附件), such as automatic stops for the carriage.2._____________________________________________(在通用车床上加工一个复杂的工件时), a great deal of time is spent changing and adjusting the several tools that are needed to complete the work.3.Point to point control system, also called positioning, are simpler than contouring control system .Its primary purpose is ________________________ ________________________ (移动刀具或工件从一个程序控制点到另一个控制点) .4.Geometric instructions __________________________________________ _______________(用于定义刀具和工件之间的相对位置和运动).5.Modern machining centers have ________________ (非常有助于) improved productivity in many companies.6.The workpiece is placed in a tank _______________________________(盛满液体介质);a depth of at least 50 mm over the work surface is maintained to eliminate the risk of fire.7.___________________________________________(高功率脉冲输出到工具和工件中)to produce the sparks responsible for material removal.8.Work hardening can be ___________________________________________________________ (通过回复和再结晶的动态软化过程消除).9.This low temperature treatment removes the residual stresses due to cold working ____________________________________(没有改变错位密度)is called recovery.10.Flame cutting can be characterized as: mass reducing, solid state of work material, chemical primary basic process-_______________(燃烧).IV . Translate the following paragraphs. (20)The generally accepted definition for heat treating metals and metal alloys is “heating and cooling.。
机电一体化专业英语试题及答案
机电一体化专业英语试题及答案Test OnePart I Choose the best symbol (16%)Directions:The following is a set of symbols denoting Working Safety. Choose the best symbol according to the information given below.Worker ID Card Face Shield Ear Protection Ear Plug & GoggleWelding Mask Safety Helmet Eye Protection High Visibility Jacket1. 2. 3. 4.5. 6. 7. 8.Part II Translate Phrases into Chinese or English (20 %) Directions: This part is to test your ability to translate the following phrases into Chinese or English.1. corrosion resistance ___________________2. 中碳钢_____________________3. lead screws __________________________4. 耐磨性___________________5. electrical conductivity ________________6. 铝合金___________________7. die-casting__________________________8. 印刷电路板________________ 9. axis of rotation_________________________ 10. 精加工___________________Part III Matching (16%)Directions: This part is to test your ability to choose the interpretations given in Column C match the Functions given in Column A, and then put thefunctions into Chinese in Column B.A. Vee BlockB. Tool Maker ClampC. Surface PlateD. Bench ViceE. Angle PlateF. Hand ViceG. Vice ClampH. Pipe Vice1.(平板)2.(角板)3.(V型块三角槽铁)4.(手钳)5.(老虎钳)6.(管子台虎钳)7.(虎钳夹)8.(工件夹钳)Part IV Translate English into Chinese (28%)Directions: This part is to test your ability to translate English into Chinese.There are many kinds of machining operations, each of which is capable of generating a certain part geometry and surface texture.In turning, a cutting tool with a single cutting edge is used to remove material from a rotating work-piece to generate a cylindrical shape. The speed motion in turning is provided by the rotating work-part, and the feed motion is achieved by the cutting tool moving slowly in a direction parallel to the axis of rotation of the work-piece.Drilling is used to create a round hole. It is accomplished by a rotating tool that typically has two cutting edges. The tool is fed in a direction parallel to its axis of rotation into the work-part to form the round hole.In boring, the tool is used to enlarge an already available hole. It is a fine finishing operation used in the final stages of product manufacture.In milling, a rotating tool with multiple cutting edges is moved slowly relative to the material to generate a plane or straight surface. The direction of the feed motion is perpendicular to the tool’s axis of rotation. The speed motion is provided by the rotating milling cutter.Part V Translate Chinese into English (20 %) Directions: This part is to test your ability to do practical writing.1. 这些机器都是由中国人造出的。
《机电专业英语》考试试题
《机电专业英语》考试试题一、英汉单词互译(1’×10=10分)1.mechanical 2.electronic3.transformer4.sensor5.stepper motorC7.direct-current 8.manufacture9.电动机10.电流二、选择题(2’×20=40分)1.He said ,“These books are not mine.”He said that ________________ books were not ________________.A. these, yoursB. those, hisC. those, his booksD. these ,his one2. I shall be ________________ to go and see him tomorrow.A. ableB. necessaryC. kindD. friendly3. “I am listening to music now.”said Tom.Tom said that he ________________ to music ________________.A. is listening, nowB. was listening, thenC. was listening, at this timeD. listen to, for a while4. Child ________________ reading stories about animals.A. isB. wantsC. enjoyD. usually5. Would you mind ________________ the window.A. my openB. me to openC. my openingD. mind open6. The house is not as clean as usual. It needs ________________.A. to cleanB. cleaningC. cleanedD. clean7. She left without ________________ good-bye.A. saysB. sayingC. to sayD. said 8.The teacher asked her pupils ________________ making any noise in class.A. stopB. not toC. stoppingD. to stop9. I’d like to take part in activities like ____________ and ____________ at the camp .A. painting, boatingB. paint, boatC. paints, boatsD. to paint, to boat10. He kept _____________ of _____________ to camp.A. thought, wentB. think, goC. to think, goingD. thinking, going11.I was told that the small machine ________________ for ________________ shoes.A. is used, mendingB. was used ,mendingC. used ,mendedD. is using ,mending12.Here is a book for you ________________ .A. readingB. to seeC. to readD. seeing13.You must be hungry. I will get you something ______________.A. ateB. eatenC. eatingD. to eat14.There will be a high wall ________________ the city in the sea from wind and water.A. to protectB. for protectC. protectsD. to make15.The homework for Monday was ________________the text by heart.A. learntB. to learnC. studyD. to study16.The problem is ________________ the pupils from accidents after school.A. how can we protectB. that protectC. how to protectD. we how to protect17.Do you think a large city is a good place ________________ ?A. to liveB. liveC. to live inD. living18.It takes me three hours ________________.A. got thereB. to get thereC. to gotD. got to19. That will be the only thing _____________ now.A. to doB. didC. doingD. has done20.Kitty said,“I will try it again tomorrow.”Kitty said that she________________ try it again ________________.A. would, the next dayB. would ,tomorrowC. will tomorrowD. would, later三、选词并用其适当的形式填空(2’×10=20分)Repair, crowded, stand, solve, breathe, is made of,thank…for, is full of, combine…with, work out1.Our school always _____________ some special activities the usual schoolclasses.2.They must _____________ a plan for the summer vacation.3.We can _____________ the problem in two days.4.It is good for us to ________________ some fresh air every morning.5.Andy came to ___________ Mr.Chong ___________ telling him how to make his housebigger.6.The bus is very ___________ at seven in the morning, so I have to go to school at six.7.I can’t ___________ the hot weather here .8.Be careful. The glass ___________ hot water.9.The old man’s house ___________ concrete and bricks.10.The question is how to ___________ the broken bike.四、配对,使之成为专业词汇(2’×10=20分)()1.open A. field()2.magnetic B. application()3.car wash C. center()4.current D. unit ()5.machining E. tool()6.control F. drives()7.inductive G. sensor()8.machine H. dryer()9.disk I. pulse()10.clothes J. loop五、判断题(2’×5=10分)()1.The standard clothes dryer is typically controlled by a sensor.()2.Stepper motor are special alternative-current motors.()3.Ink jet printers use stepper motors to feed the paper and drive print head.()4.Nowadays the most common machine tools are turning center and machining center.()5.Turning center are the latest development in CNC technology.。
机电设备维修与管理专业 英语
机电设备维修与管理专业英语Here are some paragraphs in English, tailored for the topic of "Electromechanical Equipment Maintenance and Management," that aim to demonstrate varied expressions and maintain a conversational and non-sequential style:1. When it's about electromechanical equipment, maintaining them is crucial. You know, like those big machines in factories? Yeah, those. Keeping them running smoothly is a must. So, regular checks and services arelike the oil that keeps them going.2. Management of electromechanical equipment isn't just about paperwork. It's hands-on stuff. You gotta know what each part does and how it works together. It's like a puzzle, and every piece is important.3. Sometimes, a simple adjustment or replacement of a part can save you a ton of time and money. That's why it's important to have someone who knows their way aroundelectromechanical stuff. They can spot potential problems before they become big ones.4. Safety is always a top priority when dealing with electromechanical equipment. You gotta follow all thesafety protocols and make sure everyone around you does too. Accidents can happen in a blink of an eye, so you gotta be on your toes.5. Training and development are key for anyone workingin electromechanical equipment maintenance and management. Technology is constantly evolving, and you gotta keep upwith it. New.。
机电专业英语(专业基础课程与实训课程系列)习题答案作者:朱丽芬部分习题参考答案.doc
部分练习参考答案第一课I .Match the following English words with correct Chinese:l-a 2-b 3-c 4-d 5-e 6-h 7-i 8-j 9-f 10-g第二课I .Match the following English words with correct Chinese:l-e 2-h 3-b 4-d 5-a 6-i 7-g 8-c 9-f第三课I ..Answer the following questions:(1)What is the common manufacturing process like?The common manufacturing process is:II .Translate the following expressions into English:(1)原材料raw material (2)装配assembly (3)毛坯roughcast (4)铸造casting(5)粉末冶金powder metallurgy (6)锻造forging (7)浇模molding第四课I eAnswer the following questions:What are ferrous metals and what are nonferrous metals?Any metal composed of or containing iron is called ferrous metal, such as steel, iron and ferroalloy, etc. Nonferrous materials are those whose major alloying element is any metal but iron, such as copper, aluminum, lead , zinc, etc.How widely are metals used?Metals have been used to produce an enormous variety of objects, including weapons, tools, machinery, decorative art objects and jewellery• Because of the hug e range of uses for metals, objects containing metal, or fully made from metals, are all around us. They make up a large part of many collectionshoused in museums, galleries and even some librariesII .Translate the following sentences into Chinese:(1)This is reflected in the fact that two major periods in human history have been named after metals: the Bronze Age and the Iron Age.下而的事实很好地反映了这一点:历史上有两个时代以金属命名:青铜器时代和铁器时代。
(完整版)机电专业英语试题及答案
《机电专业英语》考试题一.翻译词汇mechatronic 机电一体化(技术)sensor传感器actuator执行元件,执行结构Feedback反馈deviation偏差hydraulic液压的machine tool机床geometric modeling 几何建模job-lot amount单批量maintenance维护pallet随行夹具robot机器人drill钻床,钻头Lathe车床mill 铣床shaper牛头刨床planer龙门刨床grinder磨床tap攻丝pulley滑轮shaft轴bore 镗削screw螺杆tolerance公差torque转矩nut螺母spring弹簧key键bearing轴承coupling联结器clutch离合器diode二极管transistor三极管transistors 晶体管integrated circuit 集成电路chip 芯片capacitor 电容器resistor 电阻digital 数字(式)的lever杠杆Servomechanism伺服机构closed-loop闭环actuator 传动装置following device随动装置troubleshoot故障排除二.汉译英1.机电一体化技术,电子学,机械学,智能数控,机器人学,信息技术,科学术语。
Mechatronics , electronics, mechanics, intelligent control, robotics.information technology , scientific term .2.机电一体化技术广泛用于汽车工业、机械工业以及国防工业。
Mechatronics has been applying widely to auto industry, mechanical industry and national defense industry.3.大多数的机加工主要是由五种基本的机床来完成。
机电专业英语试卷B答案
Answer of quiz 2Ⅰ. Translate the following words or phrases into Chinese or English.(2×10)1.普通车床2.maintenance shop3.点对点数控系统4.processing equipment5.自动更换刀具6. rotary-work7.不管,不顾8.fragile workpiece9.位错密度10.grain growthII. Fill in the blanks with the suitable words or phrases given below.(3×6+2)1.be characterized as2.A wide variety of3.is heated to4.fill the cavity5.a later trimming process6.several specialized namesIII. Translate the Chinese parts given in the brackets into English.(4×10)1.Many of the larger lathes come equipped with attachments not commonly found in the ordinary shop2.When machining a complex workpiece on a general-purpose lathe3.to move a tool or workpiece from one programmed point to another4.its computational capabilities have been substantially increased5.contributed significantly to6.filled with a dielectric fluid7.The high-power pulsed output is then applied to the tools and workpiece8.balanced by the dynamic softing processes of recovery and recrystallization.9.without causing a change in dislocation densitybustionIV. Translate the following paragraphs. (20)普遍认同的对金属及合金热处理的定义是,以一定的方式加热和冷却固态金属或合金以达到一定的条件和/或获得某些性能。
机电专业英语试题及答案
机电专业英语试题及答案一、选择题(每题2分,共10分)1. Which of the following is not a type of electrical machine?A. GeneratorB. TransformerC. PumpD. Motor答案:C2. The unit of electrical power is:A. VoltB. AmpereC. WattD. Ohm答案:C3. In an electrical circuit, what does the term "resistance" refer to?A. The ability of a material to conduct electricityB. The ability of a material to resist heatC. The ability of a material to resist electricityD. The ability of a material to resist light答案:C4. What is the function of a relay in an electrical system?A. To amplify signalsB. To switch circuits on or offC. To measure currentD. To convert AC to DC答案:B5. What does the acronym PLC stand for in industrial automation?A. Power Line CommunicationB. Personal Learning ComputerC. Programmable Logic ControllerD. Public Limited Company答案:C二、填空题(每题2分,共10分)1. The three main components of an electric motor are the stator, the rotor, and the ________.答案:bearings2. The process of converting mechanical energy intoelectrical energy is known as ________.答案:generation3. A ________ circuit is a closed loop through which electric current flows.答案:closed4. The unit of electrical resistance is the ________.答案:ohm5. In a hydraulic system, a ________ is used to convert fluid power into mechanical power.答案:actuator三、简答题(每题5分,共20分)1. Explain the difference between AC and DC current.答案:AC (Alternating Current) is an electric current whose direction and magnitude change periodically, while DC (Direct Current) is an electric current that flows in a constant direction.2. What are the main components of a typical electrical power distribution system?答案:The main components include power generation, transmission lines, substations, distribution lines, and end-user equipment.3. Describe the function of a capacitor in an electrical circuit.答案:A capacitor in an electrical circuit stores electrical energy in an electric field. It can smooth out voltage fluctuations, filter out noise, and provide a stable voltage supply.4. What are the advantages of using a programmable logic controller (PLC) in industrial automation?答案:PLCs are advantageous due to their reliability, flexibility, ease of programming, and ability to handle multiple inputs and outputs, making them ideal for complex control systems in industrial automation.四、翻译题(每题5分,共20分)1. 将下列句子翻译成英文:“电机的效率是指电机输出的机械功率与输入的电功率之比。
机电专业英语考试题库
1. Manufacturing Definitions(制造的定义);2. Machining Operations(加工操作);3. Machine Tools and Ancillary Equipment(机床及辅助设备);4. Cutting Tools and Related Terminology(刀具及相关术语);5. Coolants, Lubricants, and Related Terminology(冷却剂、润滑剂及相关术语)6. Accessories and Attachments(配件和附件);7. Alloys, Coatings, Material Compositions, and Related Terminology(合金、涂料、材料组合物和相关术语);8. Heat-treating and Special Processes(热处理和特殊工艺);5. Inspection, Measurement, and Quality Control(检验,测量和质量控制);9. Robotics and Automated Assembly(机器人和自动化装配);10. Nontraditional Machining(特种加工).1. Conference paper(会议论文)2. Journal paper (期刊论文)3. Lecture(讲座)4. Book (Dissertation or Thesis)(书(论文或论文))5. Report (News)(报告(新闻))6. Manual and Specification(手册和规范)缩略语DSPs Dynamic Signal Process System 数字信号处理系统ROM read only memory 只读存储器RAM random access memory 随机(存取)储存器Radar radio detecting and ranging 雷达GIS gas insulated station 气体绝缘变电站GIS geography information system 地理信息系统CAM computer-aided manufacturing 计算机辅助制造CIMS Computer Integrated Manufacturing System 计算机集成制造系统CAPP Computer-Aided Process Planning 计算机辅助生产计划,计算机辅助工艺LED light emitting diode 发光二极管SCI Science Citation Index 科学引文索引IP Internet Protocol 网际协议UPS uninterruptible power supply 不间断电源FEA Finite Element Analysis 有限元分析FMS Flexible Manufacturing System 柔性制造系统ASME American Society of Mechanical Engineers 美国机械工程师协会IEEE Institute of Electrical and Electronics Engineers 美国电气电子工程师协会MRP manufacturing resource planning 制造资源计划;MRP material requirements planning 物料需求计划ERP Enterprise Resource Planning 企业资源计划IRP Intelligent Resource Planning 智能资源计划DRP Distribution Resource Planning 分销资源计划CNCComputer numerical control数控机床appx. appendix 附录fig. figure 图sq. square 平方msg. message 信息amp. amplifier 放大器o.p. operational amplifier 运算放大器长难句翻译A few stars are known which are hardly bigger than the earth, but the majority are so large that hundreds of earths could be packed inside each and leave room to spare; here and there we come upon a giant star large enough to contain millions of millions of earths. 我们知道有些星球不比地球大多少,但大多数星球都很大,每个星球里能装进成千上万个地球还绰绰有余。
机械专业英语试题及答案
机械专业英语试题及答案一、词汇题(每题1分,共10分)1. The process of changing a solid object into a liquid by heating is called ________.A. meltingB. evaporationC. condensationD. solidification答案:A2. A device that converts thermal energy into mechanical energy is known as a ________.A. engineB. generatorC. turbineD. pump答案:A3. The study of the forces and motion of objects is called ________.A. physicsB. mechanicsC. thermodynamicsD. fluid dynamics答案:B4. A machine that uses a rotating wheel to lift water is called a ________.A. pumpB. wheelC. turbineD. lever答案:A5. The process of removing heat from a substance is called ________.A. heatingB. coolingC. insulationD. refrigeration答案:D6. The science of measuring the properties of materials is called ________.A. metrologyB. material scienceC. thermodynamicsD. mechanics答案:A7. A machine that uses a pivot point to multiply force is called a ________.A. leverB. pulleyC. wheel and axleD. inclined plane答案:A8. The process of making a solid object by heating a liquidis called ________.A. meltingB. evaporationC. condensationD. solidification答案:D9. A machine that uses a belt and pulley system to transmit motion is called a ________.A. leverB. pulleyC. wheel and axleD. inclined plane答案:B10. The study of the behavior of materials under stress is called ________.A. mechanicsB. material scienceC. thermodynamicsD. fluid dynamics答案:B二、阅读理解(每题2分,共20分)阅读以下段落,并回答问题。
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《机电专业英语》考试试题一、英汉单词互译(1’×10=10分)1.mechanical 2.electronic3.transformer4.sensor5.stepper motorC7.direct-current 8.manufacture9.电动机10.电流二、选择题(2’×20=40分)1.He said ,“These books are not mine.”He said that ________________ books were not ________________.A. these, yoursB. those, hisC. those, his booksD. these ,his one2. I shall be ________________ to go and see him tomorrow.A. ableB. necessaryC. kindD. friendly3. “I am listening to music now.”said Tom.Tom said that he ________________ to music ________________.A. is listening, nowB. was listening, thenC. was listening, at this timeD. listen to, for a while4. Child ________________ reading stories about animals.A. isB. wantsC. enjoyD. usually5. Would you mind ________________ the window.A. my openB. me to openC. my openingD. mind open6. The house is not as clean as usual. It needs ________________.A. to cleanB. cleaningC. cleanedD. clean7. She left without ________________ good-bye.A. saysB. sayingC. to sayD. said 8.The teacher asked her pupils ________________ making any noise in class.A. stopB. not toC. stoppingD. to stop9. I’d like to take part in activities like ____________ and ____________ at the camp .A. painting, boatingB. paint, boatC. paints, boatsD. to paint, to boat10. He kept _____________ of _____________ to camp.A. thought, wentB. think, goC. to think, goingD. thinking, going11.I was told that the small machine ________________ for ________________ shoes.A. is used, mendingB. was used ,mendingC. used ,mendedD. is using ,mending12.Here is a book for you ________________ .A. readingB. to seeC. to readD. seeing13.You must be hungry. I will get you something ______________.A. ateB. eatenC. eatingD. to eat14.There will be a high wall ________________ the city in the sea from wind and water.A. to protectB. for protectC. protectsD. to make15.The homework for Monday was ________________the text by heart.A. learntB. to learnC. studyD. to study16.The problem is ________________ the pupils from accidents after school.A. how can we protectB. that protectC. how to protectD. we how to protect17.Do you think a large city is a good place ________________ ?A. to liveB. liveC. to live inD. living18.It takes me three hours ________________.A. got thereB. to get thereC. to gotD. got to19. That will be the only thing _____________ now.A. to doB. didC. doingD. has done20.Kitty said,“I will try it again tomorrow.”Kitty said that she________________ try it again ________________.A. would, the next dayB. would ,tomorrowC. will tomorrowD. would, later三、选词并用其适当的形式填空(2’×10=20分)Repair, crowded, stand, solve, breathe, is made of,thank…for, is full of, combine…with, work out1.Our school always _____________ some special activities the usual schoolclasses.2.They must _____________ a plan for the summer vacation.3.We can _____________ the problem in two days.4.It is good for us to ________________ some fresh air every morning.5.Andy came to ___________ Mr.Chong ___________ telling him how to make his housebigger.6.The bus is very ___________ at seven in the morning, so I have to go to school at six.7.I can’t ___________ the hot weather here .8.Be careful. The glass ___________ hot water.9.The old man’s house ___________ concrete and bricks.10.The question is how to ___________ the broken bike.四、配对,使之成为专业词汇(2’×10=20分)()1.open A. field()2.magnetic B. application()3.car wash C. center()4.current D. unit ()5.machining E. tool()6.control F. drives()7.inductive G. sensor()8.machine H. dryer()9.disk I. pulse()10.clothes J. loop五、判断题(2’×5=10分)()1.The standard clothes dryer is typically controlled by a sensor.()2.Stepper motor are special alternative-current motors.()3.Ink jet printers use stepper motors to feed the paper and drive print head.()4.Nowadays the most common machine tools are turning center and machining center.()5.Turning center are the latest development in CNC technology.。