Oil pump drive chain sprocket is pressed onto the front of the crankshaft.

油泵驱动链轮上按下了曲轴的前面。

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Sprocket most taboo even sprocket, the chain sprocket on the accelerated wear!

最忌讳偶数，这样的对链条加速磨损！

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This paper deals with the driving process of chain sprocket system with the multi rigid body dynamics method.

采用多刚体方法对链条链轮系统的驱动过程进行了建模和动力学分析。

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Cycling did not appeal to the masses until the introduction of the pneumatic safety bicycle with a chain and sprocket drive (the prototype of the modern design).

FORBES: A Comic Look At The 1890s Bicycle Boom