How does an aircraft engine work?
飞机的引擎是怎样运作的？
There exists close relation between maintenance cost and maintenance level of aircraft engine.
航空发动机送修费用与送修等级紧密相关。
In its initial stage, BMW committed to major aircraft engine research and development and production.
在初创阶段，BMW主要致力于飞机发动机的研发和生产。
It has close relation between maintenance cost and maintenance level of aircraft engine.
航空发动机送修费用与送修等级紧密相关。
Aircraft engine Nacelle flexible ducts.
飞机发动机短舱挠性管道。
Aircraft engine Nacelle flexible ducts.
飞机发动机短舱挠性管道。
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