rotary vane mechanical pump

同义词释义

1)rotary vane mechanical pump,旋片式机械泵2)rotary oil sealed mechanical pump,旋转式油封机械泵3)compound mechanical pump,复式机械泵4)sliding vane rotary pump,滑片转动泵，滑片机械泵5)Vortex machine,涡旋式机械6)mechanical screw type,机械螺旋式