31. Which type of bearing may be lubricated by seawater in a main propulsion shafting
system?
(A) Thrust bearing
(B) Ball bearing
(C) Crosshead bearing
(D) Stern bearing
私人筆記 (共 3 筆)
未解鎖
在主推進軸系中,海水可潤滑哪種類型的軸承...
未解鎖
在主推進軸系中,哪種類型的軸承可以用海水...
未解鎖
Which type of bearin...