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Sealing in pump shaft is achieved by means of the （).A.gasketB.packingC.o-ring

2020-09-28 01:01:05 资格考试 阅读

问题详情

Sealing in pump shaft is achieved by means of the ().

A.gasket

B.packing

C.o-ring

请帮忙给出正确答案和分析，谢谢！

参考答案

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