Under favorable physico - chemical conditions , dispersed elements such as cd , ge , and ga that were co - transported with pb and zn may have replaced corresponding ions and accumulated as the mode of isomorphism 与pb 、 zn金属一起迁移而来的cd 、 ge 、 ga等分散元素在有利的物化条件下便以类质同象的方式替代相应离子而进入闪锌矿、方铅矿的晶格并逐渐富集成矿。
Since china began her policy of economic reform and opening to the world , the discussion on " isomorphism of regional industry " and " construction of redundant projects " in all circles has been always there 改革开放以来,我国各界人士关于“区域产业同构” 、 “重复建设”的讨论似乎从未停止过,对“区域产业同构”和“重复建设”的利与弊的看法也不尽一致。
We can construct a " numerals system " , and there is isomorphism of the numerals system into prepositional calculus , so , for a proof of prepositional calculus , by isomorphism , we can find a " numerals proof of the numerals system ) ,同构保证p中的命题演绎一一对应于n中的一个“数字演绎” ,同时,为了使用方便,应该使数字系统( ? )的表示过程尽可能简单。
In the second section , we firstly prove the isomorphism of m and m * , and then discuss the relationship beetween rm and sm and the changes of some properties about hereditary torsion theories by the morita context functors 在第二部分中,我们首先证明m ~ * m ~ * ,进而在moritacontexts下讨论左r -模m与左s -模m之间的关系以及挠理论一些基本性质的转移及变化。
In the second section , we give all the ring congruences on a commutative regular semiring s and show that from the lattice of all full , closed , ideal subsemirings of s to the lattice of all the ring conruences on 5 , there is a lattice isomorphism 首先给出一个交换正则半环上的所有环同余,证明了此半环的所有满的、闭的、理想子半环所形成的格与此半环的环同余格同构。
In this case , we analyze fully and accurately the evolvement trend of " industrial isomorphism " and the effect of all marketing factor on yangtse rive delta region since 1992 . and the method that we use is named panel data model 本章采用paneldata模型分析方法对1992年以后长江三角洲地区产业同构的演化趋势及在这一过程中各种市场化因素所发挥的作用给予了翔实的分析。
In order to handle the subgraph isomorphism problem , the concept of individuals with state backtracking was proposed , where the state information of some potential individuals produced during the evolution were preserved , which contributed to the design of genetic operators 针对图数据挖掘中经常遇到的子图同构问题,提出了带状态回溯个体的概念,从而使遗传算子的设计更为合理。
They can greatly improve the performance of the algorithms by delaying the hard problem of isomorphism , which is the bottleneck of most current methods . some xml documents and web logs are analyzed using these two algorithms , which gain some interesting results 这里的各个算法还被用在了对以xml文档为代表的半结构化文档和web日志的分析工作中,并取得了一些很有意思的结论。
The words list of tao yuanming ' s poem is fair , the rhythm is natural , and the words are gratuitous , and this comes to the isomorphism with the respect steming form the accumulation of reading experience , which makes it very convenient and natural to read 陶渊明诗歌的语序正常平直、节奏自然舒缓、语词平白如话,这与读者由阅读经验积淀而成的心理期待形成同构,阅读起来便倍感轻松自然。
Subsequently we analyze the isomorphism relationship between ergodic matrices and the corresponding permutation group . by defining the permutation symbol operation system of ergodic matrices , we constructed a union form to express all existed permutation algorithms 通过在理论上分析遍历矩阵和置换群的同构关系,定义了遍历矩阵对应的置换运算和符号体系,再统一的框架下表达各种图像置乱变换。