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| 的几何描述 | |
| 作者单位： | 齐齐哈尔大学物理系 |
| 摘 要： | 从几何角度描述了，相等的原因，阐述了和式的物理意义 |
| 关 键 词： | 绝对导数 相对导数 欧勒转动定理 牵连运动 潘索定理 |
The Geometrical Exposition of ■ |
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| Authors: | Sun Weimin |
| Institution: | Department of Physics. Qiqihar University |
| Abstract: | This paper describes the reason why is equal to in egometry.It also states the physical implication of following three formula:= + × , = × . |
| Keywords: | Absolute derivative Relative derivative Euler's rotation theorem Motion of following Poinsot's theorem |
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