BABY
发表于 2025-3-28 17:24:35
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向外
发表于 2025-3-28 22:44:52
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observatory
发表于 2025-3-29 02:45:14
Integrable Spinning TopsA . is by definition a rigid body with a fixed point that rotates in a constant gravitational field. The equations of motion of a spinning top derive from the rotational version of Newton’s law, which states that
paleolithic
发表于 2025-3-29 03:57:47
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sterilization
发表于 2025-3-29 11:00:21
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无瑕疵
发表于 2025-3-29 13:12:21
10楼