电源插头应用具有电气专门知识的人来安装。电源插头必须连接到接地插座上。
An appropriate power plug has to be attached to the machine by electric technicians. Power plug has to be connected to a grounded receptacle.
电源插头应用具有电气专门知识的人来安装。
An appropriate power plug has to be attached to the machine by electric technicians.
电源插头应用具有电气专门知识的人来安装。
An appropriate power plug has to be attached to the machine by electric technicians.
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