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1·Let us again imagine an idealized experiment. A small sphere with an electric charge is forced, by some external influence, to oscillate rapidly and in a rhythmical way, like a pendulum.

我们再来设想一个理想实验，用某种外部影响迫使一个带有电荷的小圆球很快而且有韵律地像钟摆一样振荡起来。

2·As its application, the internal force influence surface of thin plates idealized with conventional and spline finite strips are calculated. And some results of numerical examples are illustrated.

作为本文原理的应用，用机动法分析了采用有限条模型的薄板的内力影响面，并给出了若干数值例子。