We can machine the commutator and voltameter,we have to deliver them to the shop for rectifying.
们可以把换向器
光并拉槽。至于电流表与电压表,
们得送到
间去调整。
We can machine the commutator and voltameter,we have to deliver them to the shop for rectifying.
们可以把换向器
光并拉槽。至于电流表与电压表,
们得送到
间去调整。
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