凸轮轴是汽车发动机配气机构的一个非常重要的机械部件，它的加工精度直接影响到汽车发动机的整体性能。
Camshafts play an important part in the valve train of engine, their accuracy of finish can affect the unitary performance of engine.
凸轮轴是汽车发动机配气机构的一个非常重要的机械部件，它的加工精度直接影响到汽车发动机的整体性能。
Camshafts play an important part in the valve train of engine, their accuracy of finish can affect the unitary performance of engine.
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