The shape irregularity of sand grains leads to eccentric distances in grains, and their variant positions when they begin to move results in the diversity of eccentric angle.

沙粒形状的不规则性使得沙粒的质心存在着偏心距，且沙粒所处位置的不同使其偏心角各异。

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It is expounded here the primary principles of eccentric gear tension compensation system that changes roving shape Angle on A454 roving frame.

本文叙述了A454型粗纱机应用偏心齿轮式张力补偿装置，导致粗纱成形角变化的基本原理。

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The pure rolling model, equal turning Angle model and bisection model for the design of eccentric involutes gears transmission have model error.

偏心渐开线齿轮传动设计的纯滚动模型、等转角模型和等分模型存在模型误差。

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