... peer into the distance 凝视着远方 a simple pendulum 单摆 a man of keen perception 感觉敏锐的人 ...
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This paper studies the nonlinear motion law of a simple pendulum with damping factor.
本文研究具有阻尼因素的单摆非线性运动规律。
Methods: A brain concussion was produced in rats using a simple pendulum device model.
方法：应用自制单摆式闭合性机械打击装置建立脑震荡大鼠模型；
A more precision formula for the period of a simple pendulum is obtained by using the method of variable be partly fixed.
利用“局部常化”方法给出了一个精度较高的单摆周期公式。
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