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15. Which possible reason will not make centrifugal pumps to vibrate?
(A) Bent shaft
(B) The impeller has become partially clogged so that the balance is disturbed
(C) Worn bearing
(D) Complete impeller


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Wind 大一下 (2021/11/28)
中文翻譯:哪個原因不會造成.....看完...


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15. Which possible reason will not make ..-阿摩線上測驗