特殊的功率调节开关，实现设备额定功率范围内任意选择调节。

Special power adjustment swith can achieve arbitrary choice adjustment in the rated power range.

youdao

特殊的功率调节开关，实现设备额定功率范围内任意选择调节。

Special power adjustment swith can achieve arbitrary choice adjustment in the rated power range.

youdao