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[".. "일일 문제 泵设备" 판단 문제: 1,1.4

2019-01-04View Original

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"bkk3.jpg 판단 문제 규칙: 11. 1번 문제를 틀리거나 모두 틀 때는 참여 포상이를 받습니다 4 포장, 한 번 문제를 틌마고 한 번 문제를 틀 때는 포장 4 포장" 4 포장 ; 2 모든 참가자는 한 번만 포장받을 수 있습니다; 个回复只能进行一次评分; 4 �回复可见答案及答案解释; 4 小时內有效。 拿奖,天天逛逛 ) ; 与梅花形弹性橡胶爪形)联轴器相比,膜片联轴器的补偿能力更强,但是耐温能力差些) ) ; 离心泵之所以只能输送液体而不能输送气体的原因是:液体的比重较大受到叶轮旋转离心力较大因而能够在入口造成足够负压使得入口管线中液体不断流入泵入口。) ) 答案: ; 错误"

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