There are many piping systems in the engine room, such as fuel oil system, 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？

youdao

There are many piping systems in the engine room such as fuel oil system, cooling system, lubricating system, fire system, fighting system. How do you identify them?

机舱中有许多管件，像燃油系列，冷却系列，滑油系列，消防系列，怎样识别它们？

youdao

On most jet aircraft, hot air from the engines is routed through piping in the wings, tail and engine openings to heat their surfaces and prevent icing.

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