... four way traffic 四路交通 four wire three phase 三相四线 four-panel center opening door 中分四 扇门，双折中分门 ...
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four-wire three-phase alternating current system 三相四线式交流系统
four-wire three-phase system 四线三相制
three phase four wire system 三相四线制
Three-phase four-wire 三相四线 ; 三相四线制
three-phase four-wire watt-hour meter 三相四线有功电度表
three-phase four-wire system 三相四线系统 ; [电] 三相四线制
three phase four-wire system 三相四线制 ; 三相四线装置
Three-phase four-wire power supply 电源电压三相四线制
three-phase four wire system 三相四线制 ; 三相四线系统
The equipment should be placed on the ground without violent vibration or on the working stage and connected in the power grid of 380v with three phase and four wire.
设备应放置在无剧烈振动的地面或工作台上，接入三相四线380v的电网。
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。
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。
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