Lubricatingoil of the low pressure system supplies the main and other bearings.
低压系统的滑油供给主轴承和其它轴承。
2
There are many piping systems in the engine room, such as fuel oilsystem, cooling system, lubricating system, fire-fighting system. How do you identify them?
机舱中有许多管系，像燃油系统，冷却系统，滑油系统，消防系统，怎样识别它们？
3
There are many piping systems in the engine room such as fuel oilsystem, cooling system, lubricating system, fire system, fighting system. How do you identify them?