中德合作机械加工IHK、HWK试题翻译原题(中期考试复习)

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机工英语试题及答案

机工英语试题及答案一、选择题（每题2分，共20分）1. The machine is ________ to operate.A) easyB) difficultC) complexD) impossible2. The engineer ________ the design last night.A) revisedB) approvedC) rejectedD) abandoned3. What is the ________ of this component?A) functionB) structureC) materialD) efficiency4. The assembly line is ________ to meet the demand.A) insufficientB) adequateC) excessiveD) redundant5. The project was ________ due to budget constraints.A) postponedC) acceleratedD) scaled down二、填空题（每题1分，共10分）6. The ________ of the engine is to convert fuel into mechanical energy.7. The ________ of the project was to improve the production efficiency.8. The ________ of the new machine is expected to be high.9. The ________ of the workshop must be followed strictly.10. The ________ of the material is crucial for the product quality.三、阅读理解（每题2分，共20分）Read the following passage and answer the questions.Passage:In the modern industry, precision is key to success. Engineers are constantly seeking new ways to improve the accuracy of their machines. With the advent of advanced technologies, the possibilities for enhancing the performance of industrial equipment have expanded significantly. The development of high-precision sensors and actuators has made it possible to achieve previously unattainable levels of control.11. What is essential in modern industry according to the passage?A) Advanced technologiesB) PrecisionD) High-precision sensors12. What are engineers looking for?A) Ways to reduce costsB) Ways to improve accuracyC) Ways to increase productionD) Ways to expand their teams13. Which of the following has greatly improved the performance of industrial equipment?A) The use of cheaper materialsB) The development of new machinesC) The advent of advanced technologiesD) The increase in the number of engineers14. What has made it possible to achieve higher levels of control?A) The use of cheaper sensorsB) The development of high-precision sensors and actuatorsC) The increase in the number of actuatorsD) The advent of new technologies15. What is the main topic of the passage?A) The importance of precision in modern industryB) The role of engineers in industryC) The history of industrial equipmentD) The cost of advanced technologies四、翻译题（每题5分，共10分）16. 请将以下句子翻译成英文：“这个机器的维护成本相对较低。

机械英语试题及答案详解

机械英语试题及答案详解一、选择题1. The term "mechanical engineering" refers to the application of engineering principles to:A. Chemical processesB. Electrical systemsC. Design and manufacture of machinesD. Software development答案：C2. What is the primary function of a bearing in a mechanical system?A. To convert energyB. To reduce frictionC. To increase efficiencyD. To absorb heat答案：B3. The process of converting a rough workpiece into a finished part is known as:A. MachiningB. WeldingC. CastingD. Forging答案：A二、填空题4. The formula for calculating the force exerted by a springis known as ________.答案：Hooke's Law5. In mechanical design, the term ________ refers to thestudy of the forces and moments acting on a body.答案：Statics6. The unit of pressure in the International System of Units (SI) is ________.答案：Pascal (Pa)三、简答题7. Explain the difference between static and dynamic friction.答案：Static friction is the force that must be overcometo start moving an object at rest, while dynamic friction is the force that opposes the motion of an object that isalready moving.8. Describe the purpose of a gear in a mechanical system.答案：A gear is used to transmit motion and force from one part of a system to another, often changing the speed and/or direction of the motion.四、计算题9. A hydraulic press has a piston with an area of 0.02 m². If the pressure applied to the piston is 5 MPa, calculate the force exerted by the piston.答案：Force = P ressure × Area = 5 × 10⁶ Pa × 0.02 m²= 100,000 N10. A lever is balanced when the product of the effort force and its distance from the fulcrum is equal to the product of the load force and its distance from the fulcrum. If the effort force is 300 N and the load force is 1200 N, and the effort is applied 2 m from the fulcrum, calculate the distance from the fulcrum to the load.答案：Let the distance from the fulcrum to the load be\( x \). According to the principle of levers, \( 300 N\times 2 m = 1200 N \times x \). Solving for \( x \) gives\( x = \frac{300 N \times 2 m}{1200 N} = 0.5 m \).五、论述题11. Discuss the importance of mechanical vibrations in the context of machinery operation and maintenance.答案：Mechanical vibrations are crucial in machinery for several reasons. They can indicate the health of a machine, with abnormal vibrations often signaling a problem such as imbalance, misalignment, or wear. Monitoring vibrations can help in predictive maintenance, preventing breakdowns and extending the life of machinery.12. Explain the concept of stress concentration in mechanical components and its implications.答案：Stress concentration occurs in mechanical components where the stress is higher than the average stress due to geometrical discontinuities or material defects. This can lead to premature failure of the component under load, as the high-stress areas are more susceptible to fatigue and cracking. Designing to minimize stress concentrations and using materials with good fatigue resistance can mitigate these effects.。

机械工程专业英语试卷A机答案

XXXX/第1学期期终试卷A（考试类型：闭卷）课程机械工程专业英语(参照答案及评分阐明) 班级姓名一、词汇（20分）（每个题目为2分）1：把下列英文单词翻译成中文：(1) threshold参照答案：开端，开始(2) graphics terminal参照答案：图像终端(3) a translate command参照答案：平移指令(4) construction robotics参照答案：建筑（构造）机器人(5) a power-driven device参照答案：力驱动装置2：把下列中文词组翻译成英文：(6) 热加工参照答案：hot working(7) 非正常晶体生长参照答案：abnormal grain growth(8)再结晶参照答案：recrystallization(9) 机械效益参照答案：mechanical advantage(10)力放大器参照答案：a force multiplier二、句型（20分）（每个题目为4分）（翻译旳内容，到达意思一致即算对旳）请将下列英文句子翻译成中文（1）Efficiency and mechanical advantage are used to gauge the performance of mechanical machine .参照答案：效率和机械效益是用来检测机械装置旳工作性能旳。

（2）Methods of extracting , producing and treating metals are being developed all the time to meet engineering requirements .参照答案：为了满足工程需要，提炼、生产和处理金属旳措施一直处在发展进步之中。

(3) The common metallic materials possess the metallic properties of luster , thermal conductivity, and electrical conductivity ；are relatively ductile；and some have good magnetic properties .参照答案：常见旳金属材料拥有旳金属性能如：光泽、导热性和导电性，并且有很好旳延展性，此外，尚有某些金属材料具有好旳磁性。

博士生中期考核第一部分专业英语试题英译汉（请将下列英文翻译成中文

博士生中期考核第一部分专业英语试题一．英译汉（请将下列英文翻译成中文，时间为30min）As far as the major communicable diseases are concerned, efforts are being made to mobilize financial support to combat tuberculosis, which recently has shown a worrying resurgence. Control programmes were reorganized in several countries, and operational and other studies were supported. The research has produced some important results which may have major implications for policy. A study of rifapentine suggests that it is a promising new drug. A large trial is being organized on the efficacy of sparfloxacin, another new drug, against multidrug-resistant tuberculosis. A study in Uganda on the feasibility of tuberculosis chemoprophylaxis for HIV-infected persons suggests that this intervention is not easily applicable on a large scale in a developing country setting. WHO's global task force on cholera control continues to support activities to strengthen national capacity to prepare for and respond to epidemics. Several cholera vaccines are at different stages of development. All 45 countries where malaria is endemic received WHO financial support for control activities. National plans of work, based on a revised regional control strategy, were drawn up in a number of African countries. WHO, together with other age ncies and NGOs, responded promptly to requests for assistance in combating malaria epidemics in seven countries, including outbreaks among the 500 000 or so Rwandan refugees. In view of the rapid spread of chloroquine-resistant and multidrug-resistant falciparum malaria, a multicentre research programme has been initiated to study ways of retarding development of drug resistance. The synthetic Colombian malaria vaccine Spf66 has been shown to be safe, to induce antibodies and to reduce the risk of clinical malaria by around 30% among children aged under 5 in the United Republic of Tanzania.二．汉译英（请将下列中文翻译成英文，时间为30min）面对繁多治疗方法，病人常会询问哪一个最为有效？以及他们自己对某种治疗的选择是否会影响成功率？很多病人都是本着完全信任医院提供的专业化关怀的心态去看病的，然而，一些病人却不能得到满意的结果，如开给他的药物造成不良反应。

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。

中德合作班IHK、HWK机械加工中期考试复习题

机械技工中德合作班导学案
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中德合作班 IHK、HWK 中期考试复习题
班级________ 姓名________ 学号___________ 分数__________
一、选择题
1.锥形轴（零件 2）的加工需要用到涂层硬质合金刀具。硬质合金属于复合材料，其中哪种复合材料包括硬质合金？ ①纤维增强型复合材料 ②渗透型复合材料 ③覆层型复合材料 ④微粒增强型复合材料 ⑤结构型复合材料
9.加工锥形轴（图纸 2），设定刀尖圆弧半径 R，主偏角 x，刀尖角ε和进给速率 f，如果改变了相应的切削条件和相应刀具角度调整，主偏角 x 从 90°降低到 75°，在进给速度 f 和切割深度 ap 保持不变的情况下，以下哪种说法是正确的？ ①切削速度变大 ②切屑厚度变小 ③切屑厚度变大 ④切削速度变小 ⑤加工横截面 A 保持不变的形状
④它们从各种硬金属粉末在高压下挤压合并而成 ⑤它们在极端压力下某些金属碳化物的粉末结合而成
5.在加工锥形轴（图纸2）时，需要正合理选择加工刀具的材料。什么硬质合金材料最适合锥形
轴的粗加工和精加工？
粗加工精加工
① P01
P50
② K01
K30
③ M10
M40
④ P10
P40
⑤ P50
P01
审核:
审批：
15.从毛坯到成品部件的切削过程中，锥形轴（零件 2）产生高的工作温度。如何妥善冷却硬质合金车刀？
①放在静止的空气中冷却 ②用冷却液或用压缩空气 ③只用压缩空气，其被间歇地供给 ④随着机油冷却 ⑤不用冷却液，通过车刀的裂纹散热冷却
16.图纸 P3-2（3）：左小角，你会发现有一个明细栏。以下哪项陈述是真的吗？ ①锥形轴（零件 2）是由主视图和侧视图表达的 ②锥形轴（零件 2）可用两个视图来表达 ③在工件图纸表达时投影方法适用第一视角表达 ④锥形轴（零件 2）左小角明细栏是为了制造场所绘制 ⑤锥形轴（零件 2）左小角明显是为了表达装配所绘制

机械工程专业英语第二版必考翻译(完整版)

1.With low-power machinery or vehicles the operator can usually apply sufficient force through a simple mechanical linkage from the pedle or handle to the stationary part of the brake. In many cases, however, this force must be multiplied by using an elaborate braking system（P5.）用低能机器或传力工具，操作者通过向踏板或把手的一个简单机械连接构件作用足够的力量到车闸固定的部分。

大多数情况，然而，用一个详细（复杂）的车闸系统使这个力量成倍增加。

2.The fundamental principle involved is the use of compressed air acting through a piston in a cylinder to set block brakes on the wheels. The action is simultaneous on the wheels of all thecars in the train. The compressed air is carried through a strong hose from car to car withcouplings between cars; its release to all the separate block brake units, at the same time, is controlled by the engineer. (Braking Systems)（ P5）相关的基本原理是使用压缩气体，通过气缸内的活塞将闸块压在车轮起作用。

德国技工考试试题题库

德国技工考试试题题库一、选择题1. 德国技工考试的主要内容是什么？A. 理论知识B. 专业技能C. 实践经验D. 以上都是2. 技工考试中，以下哪个不是必须具备的基本技能？A. 阅读图纸B. 使用测量工具C. 编程D. 操作机械设备3. 德国技工考试的评分标准通常包括哪些方面？A. 完成度B. 准确性C. 创新性D. 以上都是二、判断题1. 德国技工考试只针对机械制造领域的技工。

（）2. 技工考试的目的是检验技工的专业技能和理论知识。

（）3. 技工考试没有实际操作部分。

（）三、简答题1. 请简述德国技工考试的重要性。

2. 德国技工考试的流程通常包括哪些步骤？四、案例分析题阅读以下案例，回答问题：某技工在进行机械加工时，发现加工出的零件尺寸超出了公差范围。

请分析可能的原因，并给出解决方案。

五、论述题请论述德国技工考试对技工个人职业发展的重要性。

六、实操题假设你是一名即将参加技工考试的学员，请列出你准备考试的步骤和方法。

七、附加题1. 德国技工考试的通过率是多少？2. 技工考试后，技工可以获得哪些职业发展机会？答案：一、选择题1. D2. C3. D二、判断题1. ×（技工考试不仅针对机械制造领域，还涉及其他多个领域）2. √3. ×（技工考试包含实际操作部分）三、简答题1. 德国技工考试的重要性在于它能够确保技工具备必要的专业技能和理论知识，从而保证工作质量和安全。

2. 德国技工考试的流程通常包括报名、理论考试、实操考试、评估和认证等步骤。

四、案例分析题可能的原因包括：测量工具不准确、加工设备校准不当、操作失误等。

解决方案：检查并校准测量工具和加工设备，重新培训操作人员，确保操作流程的正确性。

五、论述题德国技工考试对技工个人职业发展的重要性体现在：它能够为技工提供专业认证，增加就业竞争力；提高技工的专业技能和理论知识，促进个人成长；为技工提供更多的职业发展机会和晋升空间。

六、实操题准备技工考试的步骤和方法包括：熟悉考试大纲和要求，系统学习理论知识，参加实操培训，进行模拟考试，及时总结经验教训，调整学习策略。

机械专业英语试题含答案

机械专业英语试题含答案2010-2011第⼆学期专业英语试卷A答案1.Translate the following Chinese terms into English ( one point for each,20 points for all)1) 汽车与⼯程机械automobile and construction machinery2) 筑路机械road-making machine3) 发电机generator4) 起动马达self starter5) ⽅向盘steering wheel6) 进⽓门inlet valve7) 齿轮泵gear pump8) 机油滤清器oil filter9) 差速器differential10) 摩擦式离合器friction clutch11) 蓄电瓶storage battery12) 铲⼟运输机scraper13) 塔式起重机tower crane14) 叉车fork lift15) 商业车辆commercial vehicle16) 变速箱transmission box (gear box)17) 带式输送机belt conveyer18) 步履式挖掘机walking excavator19) 颚式砸机jaw crusher20) 履带和轮胎track and tire2.Translate the following English terms into Chinese (one point for each, total 20 points)1) gasoline and diesel 汽油和柴油2) flywheel and cam 飞轮和凸轮3) disk brake 盘式制动器4) mechanical vibration 机械振动5) power steering 动⼒转向6) vibratory roller 振动式压路机7) hydraulic torque converter 液⼒变矩器8) piston ring 活塞环9) suspension system 悬挂系统10) cab and chassis 驾驶室与底盘11) radiator 散热器12) fuel-injection system 燃油喷射系统13) air compressor 空⽓压缩机14) lubrication and lubricant 润滑与润滑剂15) fine-mesh oil filter 机油细滤器16) pile driver 打桩机17) hydraulic excavator 液压挖掘机18) concrete paver 混凝⼟摊铺机19) truck mixer 搅拌车20) ignition system 点⽕系统3．Answer the following questions briefly(5 points for each, 20 points for all)1）Which are included in an internal combustion engine？Two mechanisms：piston connecting rod mechanism and valve timing mechanismFive systems：fuel feed system，lubrication system，cooling system，starting system，and ignition system（only for petrol engine）.2）What are included in a working member of a hydrauli excavator？Boom，arm，bucket and cylinder of the boom，cylinder of the arm，cylinder of the bucket.3) What is the function of a differential ?The differentials is a gear assembly in a motor vehicle which allows the propeller shaft or drive shaft to turn the drive wheels at different speed when the vehicle is going around a curve.4) What is the difference between a bulldozer and an angledozer?A bulldozer is mounted with a blade perpendicular to the direction of travel. And an angledozer is mounted with a blade set an angle with the direction of travel. The former pushes the earth forward, while the latter pushes the earth forward and to one side, some blades may be adjusted their use to bulldozer or angledozer.4. Translate the following sentences into Chinese. (40 points)A. Part One (5 points for each , 20 points for all)第⼀部分1) 真正最早上市的内燃机是名叫尼古拉斯·奥格斯特·奥托的德国⼈发明的。

机械工程英语试题及答案

机械工程英语试题及答案一、单选题（每题2分，共20分）1. The term "mechanical engineering" refers to:A. The study of machinesB. The design of mechanical systemsC. Both A and BD. None of the above2. What is the basic unit of force in the InternationalSystem of Units (SI)?A. NewtonB. KilogramC. JouleD. Pascal3. In mechanical engineering, the term "stress" is defined as:A. Force divided by areaB. Displacement divided by timeC. Velocity divided by accelerationD. Work divided by energy4. The formula for calculating the moment of a force is:A. Force x distanceB. Force / distanceC. Force * distanceD. Force - distance5. What is the primary function of a bearing in a mechanicalsystem?A. To transmit motionB. To support a loadC. To reduce frictionD. All of the above6. The process of converting thermal energy into mechanical energy is known as:A. ElectrificationB. MagnetizationC. Internal combustionD. External combustion7. Which of the following is not a type of mechanical joint?A. Welded jointB. Bolted jointC. Glued jointD. Riveted joint8. The principle of conservation of energy states that:A. Energy can be created or destroyedB. Energy can only be transformed from one form to anotherC. Energy is always lost during transformationD. Energy is always gained during transformation9. A gear ratio is used to describe the relationship between:A. The speed of two gearsB. The torque of two gearsC. The size of two gearsD. The material of two gears10. The efficiency of a machine is calculated by the formula:A. Output power / Input powerB. Input power * Output powerC. Input power - Output powerD. Output power - Input power二、填空题（每空1分，共10分）11. The SI unit for length is the _______.12. The formula for calculating the area of a circle is_______.13. In a lever, the fulcrum is the point around which the lever _______.14. A hydraulic press uses the principle of _______ to amplify force.15. The term "kinematics" in mechanical engineering deals with the motion of objects without considering the _______ causing the motion.三、简答题（每题5分，共20分）16. What is the difference between static and dynamic equilibrium?17. Explain the concept of a four-bar linkage in mechanical systems.18. Describe the function of a cam and follower in a mechanical system.19. What is the significance of the coefficient of frictionin mechanical engineering?四、计算题（每题10分，共20分）20. A force of 500 N is applied to a lever 2 meters long. If the fulcrum is located 0.5 meters from the point where theforce is applied, calculate the moment of the force.21. Given a pulley system with two pulleys and a mechanical advantage of 4, calculate the force required to lift a 2000 N load.五、论述题（每题15分，共30分）22. Discuss the importance of materials selection in mechanical engineering and provide examples.23. Explain the role of kinematics and dynamics in the design of a robotic arm.答案：一、单选题1. C2. A3. A4. C5. D6. C7. C8. B9. A 10. A二、填空题11. meter 12. πr² 13. rotates 14. Pascal's law 15. forces三、简答题16. Static equilibrium refers to a state where the net force and net torque on an object are zero, while dynamic equilibrium is when an object is moving at a constantvelocity under the action of balanced forces.17. A four-bar linkage is a mechanical system consisting of four bars connected in a loop, with at least one of the connections being a pivot. It is used to convert rotary motion into linear or another form of rotary motion.18. A cam and follower are components in a mechanical system where the cam's shape and rotation cause the follower to move in a specific path, often converting rotary motion intolinear motion.19. The coefficient of friction is a measure of the resistance to motion between two surfaces in contact and is crucial in determining the amount of。

IHK职业资格证书

一、IHK证书介绍德国是目前最发达的工业化国家之一，是世界上公认的制造业强国。

德国的职业教育有着完善的体系以及先进的制度，造就了大批高水平高素质的技能型人才，成为国家经济发展的重要支撑。

其中以德国工商业联合会（Deutscher Industrie- und Handelskammertag，简称DIHK）所涉及的职业资格鉴定领域涵盖范围最大，集中了德国制造业、信息产业、交通产业、商业与服务业、物流、旅游、金融等主流产业，根据技术发展水平和经济发展需求，研究开发了一系列针对性很强的职业资格标准，并推出了数百种职业资格证书（称作“IHK职业资格证书”）。

此证书在所有德国境内和海外的德国企业都具有通用性，也被几乎全部欧美国家和企业所认可和接受。

由于这一证书体系具有很高的教育培训标准和严格的过程管理及评价体系，可以培养出训练有素、综合能力和实用性强、直接为企业所用的职业人才，也得到了我国企业的认可和关注，成为国内企业聘用高级技术人才的主要依据证书。

德国职业教育采取的是教考分离制度，即学校只承担教学工作，考试则是由德国工商业联合会（IHK）或手工业联合会(HWK)进行组织，并统一颁发证书。

德国职业院校的学生在和企业签订培训教育合同后，也必须在当地工商业联合会或手工业联合会注册。

因此德国工商业联合会在德国职业教育领域的影响很大。

德国工商大会职业资格证书是以德国“双元制”职业培训为基础,通常培训期为3年。

在企业里的职业培训是根据企业培训规章进行安排和组织的。

培训规章明确规定了培训的最基本内容；职业学校的课程是按照联邦教学大纲设置的。

企业和学校可根据具体情况充实基本培训内容。

为了更好地适应社会和经济发展的需求，培训规章和教学大纲适时进行修改和补充。

培训结束后，由各主管部门组织实施考试，考试是在委员会的监督下进行。

考试委员会主要是由企业、学校、工会和各行业的代表组成。

学生通过培训考试,合格方能取得德国工商大会职业资格证书。

天津中德高职升本科考试题

天津中德高职升本科考试题
机械电子工程
题目：在机电一体化系统中，用于实现信息转换与传递的关键部件是？
A. 传感器
B. 控制器
C. 执行器
D. 驱动器
飞行器制造工程
题目：下列哪种材料在飞行器制造中常用于制造高温部件？
A. 铝合金
B. 钛合金
C. 镁合金
D. 碳纤维复合材料
自动化（工业机器人方向）
题目：工业机器人中，用于实现精确位置控制的系统通常是？
A. 伺服系统
B. 传感器系统
C. 视觉系统
D. 控制系统
通信工程专业
题目：在移动通信中，用于区分不同用户的标识是？
A. 频率
B. 时隙
C. 码分多址（CDMA）
D. 调制方式
物流管理专业
题目：在仓储管理中，用于提高存储效率和减少搬运成本的策略是？
A. 先进先出（FIFO）
B. 后进先出（LIFO）
C. 随机存取
D. 批量存取
高等数学
题目：若函数f(x)在区间[a, b]上连续，在(a, b)内可导，且f(a) = f(b) = 0，则根据罗尔定理，存在ξ∈ (a, b)，使得？
A. f'(ξ) = 0
B. f'(ξ) > 0
C. f'(ξ) < 0
D. f(ξ) = 0
机械制造工艺
题目：在机械加工中，用于提高工件表面粗糙度精度的加工方法是？
A. 粗车
B. 精车
C. 铣削
D. 磨削
供应链管理
题目：在供应链管理中，推动式供应链与拉动式供应链的主要区别在于？
A. 库存管理方式
B. 市场需求预测
C. 供应商选择
D. 物流运输方式。

数控机床英语试题及答案

数控机床英语试题及答案一、选择题（每题2分，共20分）1. What is the abbreviation for "Computer Numerical Control"?A. CNCB. NCC. CADD. CAM2. Which of the following is not a CNC machine tool?A. LatheB. Milling machineC. Drilling machineD. Hand saw3. The primary function of a CNC system is to:A. Cut materialsB. Control the movement of the machine toolC. Design partsD. Operate the machine manually4. What does the term "G-code" refer to in CNC?A. Graphical codeB. Geometric codeC. General codeD. Group code5. In CNC machining, the term "feed rate" refers to:A. The speed of the cutting toolB. The rate at which the machine moves the workpieceC. The rate at which the machine changes the cutting toolD. The speed of the machine's spindle6. Which of the following is a common CNC programming language?A. JavaB. PythonC. M-codeD. C++7. What is the purpose of a tool changer in CNC machines?A. To improve the accuracy of the machineB. To increase the efficiency of the machining processC. To reduce the cost of the machineD. To decrease the size of the machine8. The term "machining center" refers to a CNC machine that:A. Can only perform milling operationsB. Can perform a variety of machining operationsC. Is located at the center of a workshopD. Is the most expensive type of CNC machine9. What does the "Z-axis" represent in CNC machines?A. The horizontal movement of the cutting toolB. The vertical movement of the cutting toolC. The rotational movement of the workpieceD. The linear movement of the workpiece10. The main advantage of CNC machines over traditional machines is:A. Lower costB. Greater flexibility and precisionC. Easier operationD. Smaller size二、填空题（每题2分，共20分）1. The CNC machine tool is controlled by a ________ that interprets the programmed instructions.2. The ________ axis in CNC machines is responsible for the rotational movement of the workpiece.3. A CNC machine can perform complex operations with high________ and ________.4. The ________ is a set of rules that defines the movement and actions of the CNC machine.5. CNC machines are widely used in industries such as automotive, aerospace, and ________.6. The ________ is the part of the CNC machine that holds the cutting tool.7. In CNC programming, the ________ command is used to specify the path of the cutting tool.8. The ________ is a device that translates the programmed instructions into machine movements.9. The ________ is the process of creating a part by removing material from a workpiece.10. CNC machines can be programmed manually or through the use of ________ software.三、简答题（每题10分，共20分）1. Explain the difference between a CNC lathe and a CNC milling machine.2. Describe the basic components of a CNC machine and theirfunctions.四、论述题（每题15分，共30分）1. Discuss the importance of CNC machines in modern manufacturing and their impact on productivity and quality.2. Analyze the role of CNC programming in the operation of CNC machines and the skills required for effective CNC programming.五、翻译题（每题5分，共10分）1. 翻译以下句子："CNC machines have revolutionized the way parts are manufactured."2. 翻译以下句子："The CNC programmer must ensure that the program is error-free before running it on the machine."答案：一、选择题1-5 A D B C B6-10 C B B B B二、填空题1. computer program2. C-axis3. precision, efficiency4. G-code5. electronics6. tool holder7. G8. control unit9. machining10. CAD/CAM三、简答题1. A CNC lathe is designed for turning operations, which involve rotating the workpiece and cutting from the exterior.A CNC milling machine, on the other hand, is used for milling operations, which involve moving the cutting tool in various directions to remove material from the workpiece.2. The basic components of a CNC machine include the control unit, which interprets and executes the program; the drive system,。

HSKK中级

H S K K中级-CAL-FENGHAI-(2020YEAR-YICAI)_JINGBIANHSKK中级1.他是我们班最爱的学生。

2.虽然交通方便，大市周围很吵。

3.他每天都按时来上课。

4.这不太熟悉这个地方。

5.他们终于想出了一个办法。

6.请把那几件衣服包起来。

7.妈妈开心地抱着他的儿子。

8.电视上抱着了这件事儿。

9.他的钱包被小偷偷走了。

10.没有人觉得自己比别人笨。

11.这场比赛我们一定会赢。

12.今天你必须完成作业。

13.他的汉语发音很标准。

14.学生们向老师表示了感谢。

15.演员们表演得非常精彩。

16.这是但当地最高级的宾馆。

17.这种饼干味道特别好。

18.这个词的意思我猜对了。

19.大部分学生通过了这次考试。

20.他们姐妹俩长得差不多。

21.长时间玩儿电脑对眼睛不好。

22.长城是中国着名的景点。

23.你穿这件衬衫真合适。

24.树上的苹果都成熟了。

25.成为一名医生是我的理想。

26.超市里的人口越来越多。

27.现在很多饭馆都禁止抽烟。

28.最近国内出现了一些新情况。

29.妈妈正在厨房里做晚饭。

30.麻烦帮我拿一本汉英词典。

31.同学们想让我当代便。

32.去年我去一个小城市出差。

33.狗是一种聪明的动物。

34.我对学习汉语很感兴趣。

35.我一天记不住这么多次。

36.第二课的语法比较复杂。

37.这件事儿让你做我很放心。

38.教室的窗户擦得很干净。

39.他每天坐公共汽车去上下班。

40.雨后公园里的空气很清新。

41.妈妈给我讲过一个故事。

42.他们的服务让顾客很满意。

43.请把衣服挂在后面。

44.出门时别忘了关空调。

45.这本杂志里的广告太多了。

46.学校规定每天八点上课。

47.我们国家里中国很远。

48.海洋里有各种各样的生物。

49.资格次考试容易很多。

50.我打算毕业以后当护士。

51.他花了一年时间写这本书。

52.我最喜欢的颜色是黄色。

53.这家商场的衣服价格很高。

54.他每天都坚持锻炼身体。

2022中考合作市英语试卷真题及答案

2022中考合作市英语试卷真题及答案Ⅴ.单项填空（共10小题；每小题1分，满分10分）从每小题所给的A、B、C、D四个选项中选出一个可以填入空白处的最佳选项。

21. —You can ________ between joining the dancing club and going to the chess club.—I consider going to the chess club, for I like playing chess better.A. decideB. guessC. hideD. wait22. —I have ________ but praise for the police because they often help people out of trouble.—Yes, they’re well worth praising.A. everythingB. nothingC. anythingD. something23. —What place will you suggest if I travel to your hometown?—The best-known Mount Huangshan comes ________ as thefirst choice.A. hardlyB. patientlyC. strangelyD. naturally24. —I do morning exercises every day. It works my whole body.—It’s a good habit. It helps you keep in good________.A. timeB. touchC. healthD. silence25. —Do you know the spacewoman Wang Yaping?—Sure. She is called the mother who ________ the stars.A. gave outB. put awayC. looked afterD. reached for26. —Jim and I share ________ tastes and hobbies.—No wonder you take part in lots of meaningful socialactivities together.A. separateB. weakC. similarD. double27. —What are you saving money for?—Father’s Day is around the corner. I ________ a gift for my father.A. am going to buyB. have boughtC. boughtD. was buying28. You won’t fully experience the culture of a foreign country ________ you go there in person.A. becauseB. unlessC. as soon asD. as long as29. —Hey, Tom, you are making noise. You should be polite ________.—Sorry, Mum. I’ve got it.A. at mostB. in publicC. on timeD. by chance30. —Cooking helps us show love for family members.—________. Every time I make dishes for Mum, she is very happy.A. I can’t believe itB. Take it easyC. I couldn’t agree moreD. That dependsⅥ.完形填空（共20小题；每小题1分，满分20分）阅读下列短文，从每小题所给的A、B、C、D四个选项中选出一个最佳选项。

中德自动化专升本2019年试卷

中德自动化专升本2019年试卷第一部分：听力（共两节，满分30分）第一节（共5小题；每小题1.5分，满分7.5分）1．What is the man‘s job?A.A barber.B.A pilot.C.A taxi driver.2. Where should the woman turn right?A. At the colored sign.B. At Joe‘s Garage.C. After two miles.3. What does the woman think the man should do?A. Change the smaller offices into large onesB. Turn the meeting room into officesC. Move the offices to another building.4.What time is it now?A. 7:15.B.7:30.C.7:50.5. How does the man feel at the moment?A. Great.B. Terrible.C. Better.第二节（共15小题；每小题1.5分，满分22.5分）听第6段材料，回答第6、7题。

6. What does the woman plan to do?A. Focus on one project onlyB. Try to get three projects done.C. Help the man with his work.7. Why does the man hate this time of the year?A. Too many meetings to attend.B. Too many tests to take.C. Too many assignments to finish.听第7段材料，回答第8至10题8. What does the woman show the man?A. Some clothes.B.A magazine.C.A new store.9. What is the problem at the store?A. The clothes are too expensive.B. The clothes are not the right size.C. The clothes are not available10. What will happen next Tuesday?A.There will be a party.B. The man can get what he wants.C. The clothes will be delivered to the man.听第8段材料，回答第11至13题。