This article defined two types of algebraic structure,Opp-Group and Quasi-Ring,and analyzed their structure.
定义了两种代数结构反群和亚环,并对其结构进行了研究,得到:一个反群能诱导出一个交换群,这使得交换群的构作有了新的途径,也增进了对交换群结构的认识;再者亚环上可以造出结合律和分配律,从而又可开展一系列新的代数结构。
Cloud System and Precipitation in Southern Anhui Province in Winter Half Year and Structure Analysis of East Asian Circulation;
皖南冬半年云系和降水与东亚环流结构分析
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