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.
电源插头必须连接到接地插座上。
严格按操作要求使用仪器，本仪器采用单相三线插头，连接地线以确保用电安全。
Operation rules should be strictly followed. The instrument ADAPTS with a mono phase three pin plug, which connects to the earth for safety.
工厂设备的电气引入线全部都应当是接地及连接至三脚插头的，或者是双重绝缘的。
All electrical leads on factory equipment should be three-prong grounded or double insulated.
工厂设备的电气引入线全部都应当是接地及连接至三脚插头的，或者是双重绝缘的。
All electrical leads on factory equipment should be three-prong grounded or double insulated.
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