This paper brings out feasibility and applicability to make change drive of double step sliding gear by moving one gear width along axis under conditions of Corresponding ratio of gear.

本文阐述了双联滑移齿轮在适当传动出情况下，轴向移动一个齿轮宽度就可以进行变速的可行性及适用场合。

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The clutch is also used to disengage the engine from the drive train whenever the gears in the transmission are being shifted from gear ratio to another.

此外，在改变变速器齿轮的传送比时(换档时)，离合器也被用于切断传动系与发动机之间的连接。

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The primary drive gear(crankshaft gear)and the primary driven gear are the source of noise due to their high speed and bigger reduction ratio.

作为摩托车初级传动的曲轴齿轮及初级从动齿轮，由于转速高及降速比大，是产生噪声的主要因素。

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