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.

youdao

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.

youdao