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The amount of fluid delivered by a reciprocating pump can be regulated by _____.

2020-09-18 20:35:15 资格考试 阅读

问题详情

A.throttling the pressure line

B.changing the speed of the piston

C.either A or B

D.None of the above is tree

请帮忙给出正确答案和分析，谢谢！

参考答案

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