simple pendulum [力] 单摆 ; 数学摆
law of simple pendulum vibration 根据单摆振动定律
motion of a simple pendulum 简谐运动
length of equivalent simple pendulum 相当单摆曮
a simple pendulum 敏锐 ; 单摆
Simple Pendulum Set 新式共呜钟摆演示台
the simple pendulum 关于单摆
以上来源于: WordNet
Do the tangential force, the mormal force, the resultant force and their directions during oscillation of a simple pendulum change?
那么单摆在振动过程中，切向力、法向力及合力的大小和方向是否在变化?。
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。
Under the action of random exciting displacement, 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随机激振位移作用下大位移单摆的非线性随机响应进行了分析。
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