沉入式电动泵有一个叶轮可以直接连接到防水电机。

Submersible electric pumps have an impeller directly connected to a water-proof electric motor.

youdao

沉入式电动泵有一个叶轮可以直接连接到防水电机。

Submersible electric pumps have an impeller directly connected to a water-proof electric motor.

youdao