用摆研究非共振固有振动
A Study of Nonresonant Natural Vibration By Using A Pendulum Installation
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摘要: 用一永久磁铁构成的摆和一单摆一起组成一非完全强迫振动系统，它可用来观察、研究物体的非共振固有振动现象。Abstract: This article introducedes that a magnetic pendulum and a simple pendulum make a non-complete forced vibration system.It can be used to study nonresonant natural vibration.
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