The engagement theory of the gear rack mechanism can be used to study the silent chain mechanism.

通过对有内螺纹的塑件结构分析，确定采用齿轮齿条机构脱模的模具结构。

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The utility model relates to a power-drive chain mechanism for separating a machine head of a special computerized embroidery machine.

本实用新型涉及一种可分离特种电脑刺绣机机头动力传动链的机构。

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This paper introduced the principle of exponent product method and its application on the motion analysis of spatial closed-chain mechanism.

介绍了指数积方法的原理，以及它在空间闭链机构运动分析中的应用。

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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

The only way manual systems could work for a larger group would be through a pyramid-like mechanism, with small groups reporting their manually obtained results up the chain to more central tabulating authorities.

CNN: How secure is the papal election?

These work by binding chemically to that enzyme's active site to inhibit its action. (Protease cuts the raw chain of virus protein produced by a subverted cell into functional molecules.) However, the mechanism is not quite identical.

ECONOMIST: Nanotechnology in biology