电磁铁采用全封闭结构设计，保证线圈不受潮。

The electromagnet can adopt the totally-enclosed structure design to ensure that the coil is not affected with damp.

youdao

电磁铁采用全封闭结构设计，保证线圈不受潮。

The electromagnet can adopt the totally-enclosed structure design to ensure that the coil is not affected with damp.

youdao