on-engine

基本解释

Do not Wall up These Holes on Engine!
发动机:这些孔不能堵塞!
A single-point cutting tool is used to cutthreads on engine lathes.
普通车床是用单刃刀具来车螺纹的。
Transport Captain Mechanical trouble. I'm losing thrust on engine one.
机械故障。一号引擎推力低下。
For example now on engine's some appendices are also must lose the energy.
比如说现在发动机上的一些附件也是要损耗能量的。
Vacuum created in cooling system on engine cool-down is not being relieved through pressure/vent cap.
引擎冷却时在冷却系统中产生的真空没有通过压力/排气盖释放出去。