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1·Setting main parameters of disc flying shears are presented in detail. including cut Angle, bite conditions, amount of scissors overlapping, friction coefficient and rolling speed etc.

详细介绍了圆盘式飞剪各主要参数的确定，包括交角、咬入条件、剪刃重叠量、摩擦系数、轧制速度等。

2·The deformation coordination equation of worm gear for rolling cone worm gearing is introduced, and the formulae of forces analysis and the rolling - and - sliding friction coefficient are given.

本文建立了滚锥包络环面蜗杆传动蜗轮的变形协调条件，给出了该种传动受力分析的计算公式以及蜗轮与蜗杆之间滚滑摩擦系数计算公式；

3·The influence of hot rolling temperature on coefficient of friction is studied in laboratory.

在实验室条件下，对热轧时温度对摩擦系数的影响进行了试验研究。

4·On small friction coefficient runways, skidding wheels result in largely reduced brake efficiencies and possible loss of directional stability in rolling.

在小结合系数跑道下，机轮打滑严重，导致系统刹车效率降低，并很容易使飞机丧失滑跑方向稳定性。

5·The results show that the friction coefficient in rolling condition fluctuates with time and the period is equal to that of rolling movement.

结果表明：摇摆条件下摩擦阻力系数随时间周期性波动，波动周期等于摇摆运动周期。

6·The smaller the Reynolds number is, the smaller the rolling period is, and the greater the maximum rolling Angle is, the greater the fluctuations in amplitude of the friction coefficient are.

雷诺数越小，摇摆运动的周期越小，最大摇摆角度越大时，实验段摩擦阻力系数波动幅值越大。