alternating current system交流系统 ; 交恋统 ; 交流制 ; 交流电系统 alternating operating system 交替的操作系统 four-wire three-phase alternating current sys...
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?交流制
alternating current speed control 交流转速控制 alternating current system交流制 alternating current three phase four wire system with neutral earthed 中性点接地的交流三相四线系统 ..
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?交恋统
... alternating current shunt motor?交林激电动机 alternating current system?交恋统 alternating current tacho generator?交菱速发电机 ...
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?交流电系统
... 交流电整流器 alternating current rectifier 交流电系统（铁路） alternating current system 交变负载 alternating load ...
Workless power is an important factor in designing and running of alternatingcurrentsystem. A compensation device is needed in substation and the end users to save electricity.
The system generates a direct current, so using it to power DC devices locally is more efficient than switching to the alternating current needed to feed it back to the grid.
该系统产生的电流为直流电，所以用来驱动本地的直流点装置比将其转化为交流电输入电网来的更有效率。
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In the knowledge system of alternatingcurrent, the restrictive relationships of some physics quantities are similar with those of mathematical Numbers.