Asked how he succeeded, the student explained he had just come from a physics class on pendulum motion.
当被问到是如何取得成功时，大学生解释道，他刚刚上完一堂有关摆动的物理课。
The paper discusses the law of the damping-without-drive simple pendulum motion through phase-graph method.
用相图法分析讨论了有阻尼无驱动单摆的运动规律。
The paper discusses the law of the damping-without-drive simple pendulum motion through phase-graph method.
用相图法分析讨论了有阻尼无驱动单摆的运动规律。
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