《科技英语翻译》_赵玉闪_课后习题翻译_567单元_打印电子版_研究

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Thus electricity is seen to be a form of energy by which power be taken up at one place and rapidly---and generally very efficiently---delivered at another. 于是,电能被看作能量的一种形式，可把动力以电的形式迅速地，而且通常是非常高效率地由一个地方输送到另一个地方。 The process is similar to that performed at the transmit end, and the carriers are suppressed within the balanced modulation. 此项过程与发送端所进行的相似，载波被压制在平衡调制器内。

Pure oxygen must be given to patients in certain circumstances. 在某些情况下必须给病人纯氧气。

Because it is not heavy for the power it gives, a petrol engine is still used in small aircraft. 就功率来说，汽油发动机不算重，因此，现在的小型飞机仍然使用它。

Innovative glass technology has been driven by increasing concern with climate changes, energy conservation, and urban sustainability. 人类日益关注气候变化，关注节约能源和城市可持续发展，这推动了玻璃技术不断创新。

A lot has been found out about the journeys of migrating birds by marking the birds with aluminum rings put on one leg. 候鸟的旅行情况，很多是靠在鸟腿上套个铝环作标记查明的。 Pipes are often corroded by the oxygen in the air. 管子常被空气中的氧腐蚀。

Friction is also much diminished by proper lubrication. 适当的润滑也可以大大减少摩擦。 There are a number of significant top-level issues that must be addressed if a cooperative approach to human space exploration is to be pursued. 要寻求人类太空探测的合作途径，就必须应对一些至关重要的问题。

This latter decision was implied in 2004 by the budget projections released together with the VSE plan, and has never been explicitly countermanded. 后一项决定在2004年发布的预算案和新太空计划中就有所暗示，并且从未明确取消。

Meteorologists are currently trying to determine what proportion of the continent’s precipitation is produced in this way. 目前，气象学家门正在努力确定这个大路上的降水量中有多少是以这种方式产生的。

At one time, it was thought that nothing could possibly live very deep down in the oceans. 人们曾一度认为，海洋的深处不可能有生命，因为那里没有光线，而且极冷。

Assuming radiation losses to be 5%, calculate the amount of steam required. 假定辐射损耗为5%，试计算所需的蒸汽量。

They believe that they will bring to discussions of their participation in the VSE more bargaining power than has been in the case historically. 相对于以往，他们坚信在新太空计划的参与权上将会拥有更多的讨价还价的砝码。

In fact, the hole appears to move in response to an applied electric field, as though iswere a particle exhibiting both a positive charge and a positive mass. 实际上空穴似乎是随外加电场的作用而运动，好像它是带正电荷和具有正能量的粒子那样。

The ISS mechanism has worked, since the station is now reaching its final stage of assembly. 由于国际空间站正处于最后的装配阶段，它的运行机制已经在起作用。

Lunar surface systems make sense, of course, only when you have reached the Moon. 当然只有到达月球之后，月表探测系统才有意义。

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A step-down transformer can reduce voltage to whatever is desired. 降压变压器能把电压降到所需的任何数值。

Attention is necessary to prevent the electronic instrument from damage. 必须注意，以防电子仪器损坏。

This paper aims at discussing the application of nuclear energy. 本文的目的是讨论核能的利用。

The increase in pressure with depth makes it difficult for man to go very deep far below the water surface. 压力随着深度增加，这使人类进入深水很困难。

Some operating conditions could produce elevated casing temperature presenting a fire hazard. 某些工作条件可能会使机壳的温度过高，从而引起火灾。

With the brain at work, all the parts of the body work most smoothly. 只有大脑处于工作状态，人体的各个部分才能正常工作。

Atoms are too small to be seen even with a powerful microscope. 原子太小了，即使用高倍显微镜也看不见。

We find almost all physical properties of matter influenced by heat. 我们发现，几乎物质所有的物理属性都受热的影响。

The study found a direct link between the amount of fish in the diet and the rate of death from heart disease. 这项研究发现，鱼在饮食中所占的比重与心脏病的死亡率有着直接的关系。

This phenomenon accounts for a lower density of ice than that of water. 这一现象表明，冰的密度比水的小。

We could use two resistors in series, or we could increase the value of the present single resistor. 我们可以用两个串联的电阻，或者我们可增加现有的一个电阻的组织。

An alternating current has not a constant direction, and it has no constant magnitude. 交流电没有固定的方向，并且大小也在变化。

The turns of line must be insulated from each other and from the iron, or the current will flow through short-circuits instead of flowing around the coil. 线圈的各线匝之间以及铁芯之间均应绝缘，否则，将产生短路而不能形成流经线圈的电流。

Positive frequencies are produced by anticlockwise rotation and negative frequencies by clockwise rotation. 逆时针旋转的频率为正，顺时针旋转的频率为负。

Look at crystals of table-salt under a magnifying glass and you will see that each crystal is a cube with 6 faces. 加入食盐放在放大镜下观察，你就会发现每粒食盐都是一个有六个面的立方体。

There exist neither perfect insulators nor perfect conductors, for all substances offer opposition to the flow of electric current. 没有绝对的绝缘体也没有绝对的导体，因为一切物体对电流都有阻力。

The material first used was copper for it is easily obtained in its pure state. 最先使用的材料是铜，因为铜易于炼取。

The average kinetic energy of the molecules is increased and temperature is raised. 分子的

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平均动能增加了，因而温度也升高了。

The number of protons is equal to that of electrons and the whole atom is electrically neutral. 质子数与电子数相等，因而整个原子呈电中性。

Displacement is a vector and time is a scalar. 位移是矢量，时间是标量。

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