1·This is an alternating current generator.
这是一台交流发电机。
2·Nicola Tesla invents alternating current.
尼古拉·特斯拉发明了交流电。
3·With the alternating current, things are different.
对于交流电来说，情况就不同了。
4·This vibration creates an alternating current that can be tapped.
电子振动又产生了可以利用的交变电流。
5·Mains electricity in America is supplied as alternating current at 60 Hertz.
在美国，主要供应频率为60赫兹的交流电。
6·Alternating current is the current whose direction changes periodically.
交流电是其方向周期地变化的电流。
7·Diodes are electronic devices which rectify alternating current to direct current.
二极管是将交流电整流成直流电的电子装置。
8·A device, such as a diode, that converts alternating current to direct current.
整流器；整流管一种将交流电流转化为直流电流的装置，如二极管。
9·For reasons the alternating current is more widely used than the direct current.
由于种种原因，交流电比直流电用得更为广泛。
10·We can also call it an 'alternator', because it generates alternating current (AC).
我们可以也称之为'发电机'，因为它产生交流电(AC)。
1·In some parts of the world, cyclists have been powering safety lights for years with devices called bicycle dynamos, which use a generator to create alternating current with every turn of the wheels.
在世界的一些地方，骑自行车的人已经通过叫自行车发电机的装置产生了多年的安全电能。当自行车车轮转动的时候一个装在上面的发电机就会产生交流电。
2·Step down transformers provide low voltage AC power for lighting, instruments and other circuits that use alternating current at a lower voltage.
降压变压器低压AC电源提供照明，仪器仪表和其他使用交流电在一个较低的电压的电路。
3·On the railway of electrization, power supply mode is requested to be the single-phase alternating current.
在铁道电气化牵引区段，牵引供电网采用单相工频交流电供电方式。
4·Alternating current is the current whose direction changes periodically.
交流电是其方向周期地变化的电流。
5·For reasons the alternating current is more widely used than the direct current.
由于种种原因，交流电比直流电用得更为广泛。
1·This paper briefly introduces a hardware system of the alternating current motor test of the platform with superior natural price ratio.
简略介绍了一种具有优越性价比的交流电机测试平台的硬件系统。
2·Through electrostatics and examples of low-frequency alternating current and direct-current circuit, the problem of zero potential point is queried and clarified.
通过静电学、低频交流、直流等电路实例，质疑了电势零点问题，并对此进行了澄清。
3·Method The automatic ventilation and gas exchange system consisted of 2 electronic modulators, alternating current contactor, 1 switch, 1 oxygen meter and some seamless steel tubes.
方法自动通风换气系统由2个电动调节阀、1个交流接触器、1个开关、1台测氧仪、少量无缝钢管组成。
4·It must be set up suitable quiescent point in order to works in linear region. This decides that the analysis of amplifier includes direct current analysis and alternating current analysis.
要用他对信号进行不失真地放大，必须设置适当的工作点，使电子器件工作在近似线性区域，这就决定了放大器的分析包括直流分析和交流分析。
5·The calculation of loop parameters of salient-pole synchronous machines is the basis of the multi-loop theory of alternating current machines.
凸极同步电机回路参数的计算是交流电机多回路理论的基础。