研究了不考虑阻尼情况下，单自由度系统与固定面多次碰撞后的运动规律和能量损失情况。
The rules of movement and energy dissipation are surveyed with a single freedom degree system striking the fixed face in this paper.
另一方面，掌控型的孩子认为智力水平并不是固定不变的，人们可以通过接受教育和努力来提高自己的智力。
The mastery-oriented children, on the other hand, think intelligence is not fixed and can be developed through education and hard work.
另一方面，掌握型儿童认为智力不是固定的，可以通过教育和努力来发展。
The mastery oriented children, on the other hand, think intelligence is not fixed and can be developed through education and hard work.
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