The invention relates to an all volution rotary drying vacuum pump, belonging to the vacuum production equipment field.

全旋涡旋干式真空泵，属于真空获得设备领域。

youdao

The invention relates to an all volution rotary drying vacuum pump, belonging to the vacuum production equipment field.

全旋涡旋干式真空泵，属于真空获得设备领域。

youdao