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["일일 문제: 이론적 기초2", "객관식 문제: 퍼플펌프가 작동을 멈추는 경우 ( ) ) ", "A.. 출구 밸브를 먼저 닫고 전원을 끅니다", "A.... 출구 밸브를 먼저 닫고 전원을 끅 " "A.A..............A..........A...A..AA......A..A..AA" "A.A.AA.AA..A 출구 밸브를 먼저 닫고 전원을 끅 "

2019-08-11View Original

Thread Content

选择题:离心泵停止工作操作时宜( ) A. 先关出口阀后停电       B.先停电后关阀 C.先关出口阀或先停电均可        D.单级泵先停电,多级泵先关出口阀 答案:A 提示:答案回复可见
Reply #22019-08-11
A. 先关出口阀后停电 
Reply #32019-08-11
A. 先关出口阀后停电
Reply #42019-08-11
A. 先关出口阀后停电 
Reply #52019-08-11
A. 先关出口阀后停电  

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