短語(yǔ)詞組短語(yǔ)Low -speed vortex pump 低比轉(zhuǎn)速旋渦泵low -specific-speed centrifugal pump 低比速離心泵low specific -speed centrifugal pump 低比轉(zhuǎn)速離心泵super -low specific speed centrifugal pump 超低比轉(zhuǎn)速離心泵 返回 low-speed pump