Others: Pipe Fitting, PumpHousing, Ski, Foot Plate, etc.
其他：管道接口、泵体外壳、滑雪板、机车脚踏板等。
2
The rotary motion of a profiled impeller in combination with a shaped pumphousing or volute applies centrifugal force to discharge fluids from the pump.
成型叶轮的旋转运动以及成型的泵壳或蜗壳产生离心力从泵中排出流体。
3
Mr. Lindsey points out that 100,000 participants in the scheme would pump at least $1 trillion into the housing industry, and would wipe out a large slice of excess housing inventory.