... 单体斗式泵 monoblock scoop pump 低比转速泵 low specific speed pump 低速泵 low-speed pump ...
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low specific speed pump coupling 低比转速泵联轴器
low specific speed drainage pump 低比速疏水泵
low specific-speed centrifugal pump 低比转速离心泵
low specific speed centrifugal pump 低比转数离心泵
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