This paper assumes the rotational angular velocity of a crane according to the experimental sine rule, and derives the nonlinear differential equations of the swing Angle.

本文以实验为依据，假定起重机的旋转角速度按正弦规律变化，推出货重偏摆角的非线性微分方程。

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The influence of coverage due to the radius, angular velocity, pitch , double thread of plastic screw, and rotational mode of steel axis are also discussed in here.

文中并探讨了塑胶导螺杆半径、转速、螺距、双螺纹与钢轴旋转模式对钢珠表面检测覆盖率影响。

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