代替泵叶轮应该经过修整，或者阀门应该位于系统部分节流的地方。

Instead the pump impeller should be trimmed or valves located else where in the system to partially throttle the flow.

youdao

代替泵叶轮应该经过修整，或者阀门应该位于系统部分节流的地方。

Instead the pump impeller should be trimmed or valves located else where in the system to partially throttle the flow.

youdao