three phase four wire system 三相四线制
four-wire system [通信] [电] 四线制 ; [电] 四线系统
Equivalent Four-Wire System 等效四线系统 ; [通信] 等效四线制 ; 等效二进制数字
two phase four wire system 双两相四线制
three-phase four-wire system 三相四线系统 ; [电] 三相四线制
three-phase and four-wire system 三相四线制
three phase four-wire system 三相四线制 ; 三相四线装置
two-phase four-wire system [电] 两相四线制
three-phase four wire system 三相四线制 ; 三相四线系统
In this paper, two types of main power circuits and their control methods are introduced when constructing active power filter in three phase four wire system.
本文介绍了在实现三相四线制有源电力滤波器时所采用的两种不同的主电路结构及其控制方法。
Another improvement, by the famed inventor Thomas Alva Edison (1847-1931) in 1874, was the Quadruplex system, which allowed for four messages to be transmitted simultaneously using the same wire.
另一项技术进步——四路系统，由著名发明家托马斯·阿尔瓦·爱迪生(Thomas Alva Edison, 1847 - 1931)于1874年发明，它可以使四条信息在同一条电报线上同时传送。
In the Three phase and Four wire circuit system, the neutral wire is very important.
在三相四线制供电系统中，中性线是非常重要的。
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