科技英语翻译480句

一、时间（1-80）

1. When a wire is broken by bending it back and forth rapidly, some of the work is transformed into heat and the wire gets hot.

当把导线快速地（通过）来回弯曲折断时，部分功就转换成热，所以导线变热．

2. When the moon changes it position, so do the orientation of the tide-generating forces and the position of the equilibrium tide.

当月亮的位置改变时，引潮力的取向和平衡潮的位置也改变了．

3. The water vapor will change from its invisible state to condense into visible moisture when the dew point temperature is reached.

当露点温度达到时，水气将从其看不见的状态凝结成可见的水分．

4.When a user requests a set of resources, it must be determined whether the allocation of these resources will leave the system in safe state.

当用户要求一组资源时，必须确定这些资源的分配是否会让系统处于安全状态．

5.As the number of users sharing the segment increases, so does the difficulty of finding an acceptable segment number.

当合同程序段的用户数目增加时，查找可接受的程序段的号码的困难也增加．

6. The air pressure begins falling accordingly as a typhoon comes near.

随着台风的临近，气压开始下降．

7.While they are waiting in the ready queue, the I/O devices are idle.

当它们在就绪队列中等待时，输入／输出装置则空闲着．

8. At the same time the waves are fanning out, they are also separating by wavelength, a process known as dispersion.

当这些波向外扩散时，它们也在按波长分开，这一过程叫频散．

9.Current stars flowing at the very moment when we close the circuit.

当我们一接通线路，电流马上就开始出现．

10. Meteorology entered a period of rapid advance about the time the Bjerknes' cyclone model appeared.

大约在Bjerknes的气旋模型问世前后，气象学进入了一个迅速发展的时期．

11. While in the form of radiation, the energy may travel a tremendous distance before being absorbed or changed back into heat.

当能量以辐射能形式存在时，可以在经过很长距离后，才被吸收或转化为热．

12. When moving over land, a typhoon is gradually decreased in severity.

当台风在陆地上移动时，其猛烈性逐渐减弱．

13. It is only when particles are close enough to exert relatively large forces on one another that they are able to set each other into this type of vibration.

只有当粒子紧密到能够相互施加较大的力时，它们才能使彼此产生这样的振动．

14.Only when its melting-point temperature is reached does iron start to pass into a liquid.

只有当熔点温度达到时，铁才开始变成液体．

15. Only if the component vectors are on a straight line will the length of the vector for the sum be equal to the sum of the lengths of these components or to their difference.

只有当几个分矢量在一直线上，那么表示其和的矢量长度才会等于这些分量的长度和或它们的差．

16. Whenever occasion arises intensive observations are to be done to get the information on the fine structure of the atmospheric event.

每当必要时，应该进行加密观测以便获得这一大气事件的细微结构的资料．

17. Whenever a wave moves out from a source in uniform medium, it travels in straight lines.

每当（凡是）波从均匀介质中的波源移出时，它都呈现直线传播．

18. Each time the current changes directions, a period of no current, known as slack water, intervenes.

每当潮流改变方向时，中间都有一段叫做平潮的无潮流阶段．