1．虹吸管正常工作，其顶部的真空值一般不大于（）水柱高。 - 查题网

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国家开放大学 / 流体力学

1．虹吸管正常工作，其顶部的真空值一般不大于（）水柱高。

A.
7.5m

B.
6.0m

C.
10m

D.
9m

积分

流体力学

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