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Superconducting magnetic energy storage based dynamic voltage restoration strategy for unbalanced voltage sags 期刊论文
Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition), 2015, 卷号: 45, 期号: 4, 页码: 1234-1241
作者:  Bao, Guang-Qing;  Mao, Zhen-Peng
收藏  |  浏览/下载:14/0  |  提交时间:2020/11/14
Visual-spatial representations and mathematical problem solving among children with mathematics difficulties 会议论文
Beijing, 2004
作者:  G. L. Yu;  R. Yan;  P. P. Zeng
收藏  |  浏览/下载:7/0  |  提交时间:2011/08/22


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