选择时主要根据PLC输出设备的电源类型和电压等级的多少而定。

Choice primarily on the basis of PLC power output device type and the number of voltage levels may be.

youdao

选择时主要根据PLC输出设备的电源类型和电压等级的多少而定。

Choice primarily on the basis of PLC power output device type and the number of voltage levels may be.

youdao