大管轮（second engineer ），请在 我们拆螺旋桨之前，放掉尾轴管油（stern tube oil）。 Hello, second engineer.
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Stern tube oil tank 艉管滑油循环柜
oil bath stern tube 浸油尾轴管 ; 浸油艉轴管
oil lubricated stern tube bearing 油润式艉轴管轴承
stern tube seal oil pump 尾轴管密封油泵
stern tube lubricating oil pump 艉管滑油泵
stern tube sealing oil pump 尾轴管油封用油泵 ; 艉轴管轴封油泵
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