问题描述：
[单选]
The rate of cylinder lubricating oil metered to each cylinder of a large low-speed main propulsion diesel engine is（）
A．the same, whether at sea, or during maneuvering
B．adjusted during each hour of operation while at constant RPM
C．higher at sea than while maneuvering
D．lower at sea than while maneuvering
参考答案：查看无
答案解析：无
☆收藏
答案解析：无
☆收藏
上一篇：On a medium-speed main propulsion diesel engine， the crank-pin or crank journal bearings receive lubricating oil from（）．
下一篇：The crankcases of many diesel engines are kept under a slight vacuum to（）
- 我要回答: 网友(216.73.216.223)
- 热门题目: 1.每海里燃油消耗量是指船舶每航 2.动力装置有效热效率是指（）。 3.动力装置燃料消耗率bz是指动