38.Strainers should be provided with indicators to provide warning of the necessity for cleaning the strainers.
(A)pressure-drop
(B)temperature-drop
(C)reverse-flow
(D)overflow
詳解 (共 1 筆)
未解鎖
38.空氣濾網應配備什麼的指示器,以提供...
私人筆記 (共 1 筆)
未解鎖
過濾器應為提供指示器,以警告是否需要清潔...