科技英语翻译 赵玉闪 3567章习题与答案.docx

The thickness of a tooth measured along the pitch circle is one half the circular pitch.沿节圆所测得的齿厚是周节的一半。The earthquake measured 6.5 on the Richter scale.这次地震的震级为6.5力士震级。We must reflect what measures to take in case of any accidental collapse of a bed .我们必须考虑一下如果层床意外崩塌应该采取什么措施。In the transistor the output current depends upon the input current ,hence it is a current-operated device.在晶体管中，输出电流取决于输入电流，因此，晶体管是电流控制器件。The relay is operated by a current of several milliamperes.继电器由数毫安电流起动。The hearing aids are operated from batteries.助听器用电池供电Either of two reactions may be in effect in the reduction of iron oxide with carbon.在用碳还原氧化铁时，两种反应中的每一种都可能发生Alloys belong to a half-way house between mixtures and compounds.合金是介于混合物和化合物的中间结构The spindle rotates simultaneously round two axes at right angles to each other.钉子同时绕两个相互垂直的轴旋转An electron is an extremely small corpuscle with negative charge which rounds about the nucleus of an atom.电子是绕原子核转动且带有负电荷的微粒The rudder serves the purpose of yawing the airplane to the right or left.方向舵的用途是使飞机能够左右偏航Each of these compounds boils at a different temperature.这几种化合物的沸点各不相同After more experiments ,Galileo succeeded in making a much better telescope.经过一些实验后，伽利略成功的造出了一架好的多的望远镜During the weo and half hour talk, the two sides exchanged views on the choice of terms of payment, but they made no mention of the mode of transportation.在两个半小时的商谈中，双方就付款方式交换了意见，但却没有提到运输方式The application of electronic computers makes for a tremendous rise in labor productivity.使用电子计算机可以大大提高劳动生产率The maiden voyage of the newly-built steamship was a success.那艘新建轮船的首航是成功的About 20 kilometers thick , this giant umbrella is made up of a layer of ozone gas .地球的这一巨型保护伞由一层臭氧组成，其厚度约为20公里。We have made a careful study of the properties of these chemical elements.我们仔细的研究了这些化学元素的特性。Gases and liquid are perfectly plastic.气体和液体具有很好的弹性That radio factory impressed me deeply.那个无线电厂给了我很深的印象All of the austenitic stainless steels resist hydrogen damage .所有的奥氏体不锈钢都具有抗氢腐蚀性能If the N pole of one magnet