...supply；three-phase supply [gap=87]关键词：住宅；负荷计算；三相平衡；同时系数；表箱相序；需要系数法；单相供电；三相供电 ...
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three phase supply 三相供电
Three-phase power supply 三相电源 ; 三相供电
three-phase alternating-current supply 三相交流电源
Three-phase four-wire power supply 电源电压三相四线制
AC three-phase power supply 三相交流电源
three-phase emergency power supply 三相应急电源
Three-phase motor relies on three-phase supply. It has a high efficiency and can get a high starting torque.
三相电动机以三相电源驱动感应电动机，其效率很高，启动力矩也比较大。
Primary electrical power is provided by two engine driven generators which supply three-phase, 115 volt 400 cycle alternating current.
主电力是由两个发动机驱动发电机供应三相，115伏400周期交流电。
Fit for various small machinery powered by three-phase power supply.
适用于使用三相电源的各类小型机械。
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