simple pendulum

基本解释

The ideal simple pendulum movement is not practical though it is simple, and the practical case comes from the correction and improvement of the ideal case.
理想的单摆运动虽然简单却不实际，实际情况需要在理想情况的基础上进行修正和改进。
Under the action of random excitations, the response of a simple pendulum with large displacement was studied in this paper by means of nonlinear spectral analysis.
本文应用非线性谱分析法对大位移单摆在随机激励作用下的非线性随机振动问题进行了研究。
To state the restoring force of a simple pendulum during oscillation is the resultant force of the gravity of the ball and the pulling force of the thread is wrong .
常出现一些模糊认识，即认为单摆在振动中所受的回复力就是摆球所受重力与绳子拉力的合力，显然，这是错误的。