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Using this scheme, we successfully produced a triple recessive line for genes ch, nlw (non-lepis wing) and b-t on the 13th linkage group and a double recessive line for genes nb and ki-2 (kidney-shaped egg 2) on the 19th linkage group of Bombyx mori.

采用所设计的方案，成功培育了家蚕第13连锁群的赤蚁、无鳞毛翅和褐色卵t (b-t，母性影响遗传)的三隐性系统，并培育了第19连锁群的狭胸和第二肾形卵(ki-2，母性影响遗传，待定位突变基因)的双隐性系统。

From these theorems, we can deduce the important Lagrange ' s theorem, relating the order of a subgroup to the order of a group

从这些定理，我们可以推导出重要的拉格朗日定理，它有关於群的子群的阶

That a lot of parks in our country are lake of the intergrowth self-organized system which the cluster possesses makes it not keep its competitiveness.

通过与国内外园区的比较认为产业集群是国外成功园区发展的共同特征，而我国大部分工业园区不具有集群内部的共生性自组织机制，这使我国园区缺乏持续的竞争力。

A method is put forward to find the better ε of the ε-non-sensitive loss function based on the particle swarm optimization. The simulation result shows the regression support vector machines take far fewer times than using the way of latticework searching to get the desired result the efficience is improved greatly and optimal ε is obtained.

本文给出了一种基于粒子群优化算法的、对ε不敏感损失函数的ε参数寻优的方法，仿真结果表明：采用基于粒子群优化算法的寻优方法寻找ε参数，需要重复训练回归支持向量机模型的次数明显小于格点搜索方法，节省了大量的时间并且能找到较优的ε值。

It proved that, when sum of piles, length of piles and diameter of piles were equal, effect coefficient of piles group per m^2 was at the maximum with quincunx laying-out piles, next rectangle and minimum square, the quincunx laying-out piles groups was a better choice than the others laying-out piles group in many eases.

计算表明，当桩数、桩长、桩径相同时，单位承台面积上的群桩效应系数，呈梅花形布桩的最大，呈矩形布桩的次之，呈正方形布桩的最小。因此，呈梅花形布桩群桩是较好的选择。

The results showed that when the proportion of the resistant subpopulation within the h-VRSA was low, te level of the toxic factor and its pathogenicity to animals had no difference from that of the standard strain. If proportion of the resistant subpopulation increased the level of coagulase and lecithinase changing from positive from negative and the ring of hemolysis disappeared. The speed of proliferation of the organisms in the animal slowed down and the LD50 increased.

结果 当试验菌株中耐药亚群的比例较少时，其毒力因子及动物致病性检测结果与金葡菌标准菌株无显著差异；随着试验菌株中耐药亚群的比例增加，表现为血浆凝固酶、卵磷脂酶由阳性转为阴性，血琼脂平板上溶血环消失，细菌在动物体内增殖速度减慢，对动物的半数致死量(LD50)增加。

In the sense of cutset, the relation between the rough set of a cutset and the cutset of a rough set, a fuzzy rough set of a fuzzy primary ideal in a semigroup is proved to be its fuzzy primary ideal. The sixed chapter is Rough Primary Ideals and Rough Fuzzy Primary Ideals in rings, the corresponding results of a semigroup are generalized in a ring. The last chapter is Rough-fuzzy Subsemirings in Semirings, First, the lower and upper rough-fuzzy semirings together with the left and the right ideal are defined.

利用截集意义下，截集的粗糙集与粗糙集截集的关系，证明了在完备同余关系下半群中的模糊准素理想的粗糙集是模糊准素理想；第六章是环中粗准素理想和粗模糊准素理想，将半群中的相(来源：A70BC论文网www.abclunwen.com)应结果推广到环中；第七章是半环中的粗模糊子半环，首先，给出上粗模糊子半环及上粗模糊理想等概念，并研究了它们的性质。

In order to contract a muscle, the opposite muscle groups have to be relaxed and lengthening.

在一定的肌肉群在运动中自然收缩的时候，另一些肌肉群必须处于休息和拉伸的状态。

To explore the influence of reticuloendotheliosis virus and subgroup J avian leucosis virus infection on chicken cellular immunity,the mitogenic response to ConA of blood and spleen lymphocytes tested and analyzed with 3H-thymidine(3H-TdR) incorporation assay at different intervals after infection or co-infection of single or both viruses.

自1974年分离出网状内皮增生症病毒[1]和1991年分离出禽白血病病毒J亚群[2]以来，在我国先后分离出不同毒株的REV和ALV-J，并开展了病原学、流行病学、致病性和免疫反应以及预防诊断等方面的研究，揭示出不同的致病性，并且确认它们都可造成感染鸡群免疫抑制，成为一些

A modified Particle Swarm Optimization algorithm is proposed and used to optimize the sidelobe level of plane arrays, in which special techniques as global best perturbation and jumped inertia weight strategy are adopted. The PSO algorithm is also used to select a better combination of optimal parameters for itself.

摘要该文运用一种改进的粒子群优化算法对不等幅激励的矩形平面阵列天线的最大旁瓣电平进行了优化，采用对全局最优粒子微扰和跳变的惯性权重策略，并使用粒子群算法本身对参数组合进行了优化选择。

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。