The key problem of mismatch control and manufacture of symmetric arc-shaped gears is perfectly solved by using suitable cutter tilt and new generating method.

根据刀盘参数，选用合适的刀倾角，采用新的展成法，圆满地解决了失配量的控制和加工这种齿轮的关键性问题。

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Absrtact: the purpose of this study is to establish the model of tilt rotor aircraft, so as to find an approach to the control problem.

摘要：文中的研究目的是建立倾转旋翼飞机的模型，从而解决倾转旋翼飞机的控制问题。

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