The calculation of transmission accuracy of gear chain can be carried through simply and conveniently by employing these formulae.

使用这些公式可简单方便地进行齿轮链传动精度的计算。

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See Actuators &Accessories section for: Bevel gear, spur gear, chain wheel, motor or cylinder actuators; Bypasses, drains or auxiliary piping; Special packing, etc.

参阅执行机构和附件章节，了解：伞齿轮，正齿轮，链轮，马达或缸体执行机构；旁路，排泄，或辅助管路；特殊填料，等等。

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Derailleur gears have a front mech (short for front gear mechanism) to shift the chain between two or three chainrings and a rear mech (short for rear gear mechanism) with up to 10 sprockets.

BBC: Sport

As the economic engines gear up, the eventual rewards should be distributed fairly and throughout the value chain.

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