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单选题 3、离心泵铭牌上标明的是泵在（）时的主要性能参数。

单选题 3、离心泵铭牌上标明的是泵在（）时的主要性能参数。
A.流量最大
B.压头最大;
C.效率最高;
D.轴功率最小;
正确答案：C
标签：压头 铭牌 离心泵
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