... motor switch 电动机开关;电动开关 motor switch oil 电气开关油;马达开关油 motor-circuit switch 电动机馈线开关 ...
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When the switch is closed, the variable pump has no oil supply, the current decline will keep the motor in empty waiting state, thus effectively save energy.
当水开关关闭时变量泵不供油,电流下降使电机处在空载待机状态,这样就有效达到节能。
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