In this paper, simple pendulum motion is studied by means of the series perturbation method.
本文用级数微扰方法研究单摆运动。
This paper give differential equations of the motion of the complex pendulum.
本文给出了在复杂运动条件下，单摆的运动微分方程。
This paper give differential equations of the motion of the complex pendulum.
本文给出了在复杂运动条件下，单摆的运动微分方程。
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