| 转动惯量的任意轴定理 |
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| 引用本文： | 王宏达,李子军.转动惯量的任意轴定理[J].东北师大学报(自然科学版),1997(2):33-36. |
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| 作者姓名： | 王宏达 李子军 |
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| 作者单位： | 内蒙古民族师范学院 |
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| 摘 要： | 利用刚体转动惯量一般定义形式，经过一系列推导，证明出刚体对任意轴转动惯量定理，由此得到特殊形式的平行轴定理，垂直轴定理及广义垂直轴定理，并通过实例说明此定理在应用上简便，易行。
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| 关 键 词： | 刚体 转动惯量 惯性张量 任意轴定理 |
Preparation and Properties of the 12-Tungstoboric Acids and Salts with Alkali and Alkali Earth Metals |
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| Gao Lijuan,Zhou Duanwen,Wang Enbo.Preparation and Properties of the 12-Tungstoboric Acids and Salts with Alkali and Alkali Earth Metals[J].Journal of Northeast Normal University (Natural Science Edition),1997(2):33-36. |
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| Authors: | Gao Lijuan Zhou Duanwen Wang Enbo |
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| Abstract: | Alkali and alkali earth metals of 12-tungstoboric acids (salts) were prepared. IR, Uvspectra, XPS and thermal properties were studied and some propenties on salts of inside and outside boundary were also compured. |
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| Keywords: | tungstoboric acid(salts) alkali metal alkali earth metal thermal stability |
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