自动复位万能转换开关取代按钮，一孔取代多孔。

The auto reversing universal changeover switch substitute for the button, and one hole substitute for multi-hole.

youdao

自动复位万能转换开关取代按钮，一孔取代多孔。

The auto reversing universal changeover switch substitute for the button, and one hole substitute for multi-hole.

youdao