5. What kind of action should be done before operating any centrifugal pump?
(A) See pump glands
(B) Check lubrication
(C) Filling liquid for case
(D) Open the connection between pump and motor
詳解 (共 2 筆)
未解鎖
5.在操作任何離心泵之前,應採取何種措施...
未解鎖
離心泵浦運轉前應採取哪些措施?(A) 請...