群

Lastly , from a primitive rpp semigroup with zero , we built up a type A blocked Rees matrix semigroup and showed a semigroup S is a primitive rpp semigroup if and only if S is isomorphic toa type A blocked Rees matrix semigroup.

该结果的一个特例就是可消幺半群上的Rees矩阵半群。

It is improved to solve the prematurely and stagnation problems of traditional Ant Colony Optimization in the paper. First, mean value method is used to update pheromone to avoid premature convergence which leads to non-globally optimal solution. Second, Pheromone is updated by Best Track to speed the rate of convergence which will help to avoid locally optimal solution.

本文针对基本蚁群算法比较容易陷入早熟和停滞，对现有蚁群算法的信息素更新规则进行了改进，一是采用平均值法更新信息素，避免算法过早收敛于非全局最优解；二是采用最佳路径法更新信息素，可加快收敛速度，并使算法跳出局部最优解。

Since designers, manufacturers, and quality inspectors in the industrial sector all have to rely on the common language, mechanical drawing, to communicate or convey messages among one another, Mechanical Drawing Practice has always been a not only important but also required course in the industrial vocational high school curriculum.

机械图是工业界的共同语言，不论是设计者、制造者或检验品管等相关人员都必须赖以作为彼此间沟通或传递讯息的依据﹔因此，高工机械群之中除制图科将机械制图与实习列为专业必修科目外，在其他各科的课程标准中机械制图与实习课程亦为必修科目﹔而课程中基本制图部分单元更是工业类个群专业必修的基础科目，由此可知，举凡与制图有关之机械制图、工程图学等课程在高职工业类科的课程中所占有的重要性。

No significant associations of megakaryocyte quantity and anti-platelet autoantibody with the three kinds of cells were found,and there were no statistical differences between primary ITP and recurrent ITP patients.

4巨核细胞数目与Th17、Th1和Tc1细胞亚群之间无明显相关性。抗血小板抗体阳性的患者与阴性患者相比，三种细胞亚群的比例无明显差别。

These results, together with our previous study, suggested that, similar to the observation in the most Mendelian monogenic disorders, a complex disease may be caused by a spectrum of different mutations in a gene .

这些结果再次证明了我们的假说，在同一种多基因病中，可能存在着不同的亚群，不同的亚群可能由同一个基因不同位点的SNP 变异所引起。

These results were similar to the observation in the most Mendelian monogenic disorders, in which a spectrum of different mutations in a gene caused a disease.

这些结果表明，在同一种多基因病中，可能存在着不同的亚群，不同的亚群可能由同一个基因不同位点的SNP 变异所引起，也可能由不同的主效基因的SNP 变异引起。

Raphe nucleus has been described as a midline structure located in the midline region and adjacent reticular formations of the brainstem and mesencephalon.

中缝核群是位于延髓、脑桥和中脑的正中缝及其附近网状结构的一系列小核团所组成的核群的总称。

We demonstrate that the Six2-expressing cap mesenchyme represents a multipotent nephron progenitor population.

我们证明有Six2表达的帽间充质细胞群代表了具有多分化潜能的肾单元祖细胞群。

In this experiment, 1.5% optimized microbial populations were added. The optimized microbial populations were primarily identified as Pseudomonas, Micrococcus, Actinomayces, Penicillium and Aspergillus.

在实验装置内加入了1.5%的优化菌群制剂，优化出的菌群初步鉴定主要有：假单胞菌属、微球菌属、放线菌属、真菌类的青霉属和曲霉属等。

On the basis of mega and microfossil records, the flora of Yunnan Province has been studied in order to reveal the Tertiary floral evolution and climatic change.

根据已有大化石和孢粉植物群的研究，从植物区系和类群两个层次上，对云南第三纪植物群发展和气候变迁进行了分析。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。