... 发动机整流罩 engine cowling 发动机正时点火调整 timing of engine 发动机重量指标 weight index of engine ...
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timing of an engine 发动机定时
timing chain of engine 汽车正时链
·2,447,543篇论文数据，部分数据来源于NoteExpress
Use of lasers also significantly improves the timing of the engine.
FORBES: Replacing Spark Plugs With Lasers For A More Fuel-Efficient Car
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