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[". Переключение между частотно-регулируемыми насосамиами,先启用备用泵,打开备用泵出口阀门,同时内操调整备用泵和主泵电机电流相应增大,主泵电机电流相应减小直至为0。然后关闭主泵出口内操使用( )控制流量。 B、电机电流

2019-02-25View Original

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Переключение между частотно-регулируемыми насосами,先启用备用泵,打开备用泵出口阀门,同时内操调整备用泵和主泵电机电流相应增大,主泵电机电流相应减小直至为0。然后关闭主泵出口内操使用(D)控制流量。 B、 ток мотораа
Reply #22019-02-25
D.

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