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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During the ship maneuvering, ship-turning Angle could be set arbitrarily and the course ERROR (e) and CHANGE in ERROR (ec) could be larger some time.

船舶操纵运动控制过程中，由于转向角度可任意设置，系统的航向偏差和偏差变化率有时可能会很大。

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Abstract : During the ship maneuvering , ship-turning angle could be set arbitrarily and the course ERROR (e) and CHANGE IN ERROR (ec) could be larger some time.

文摘：船舶操纵运动控制过程中，由于转向角度可任意设置，系统的航向偏差和偏差变化率有时可能会很大。

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