查询词典 groups

Our studies mainly focus on the free groups with finite ranks . Free groups with finite ranks are the fundamental subjects of combinatorial group theory, and they have central importance for the studies of both topology and algebra.

我们研究比较多的是有限秩的自由群，有限秩自由群是组合群论的中心课题，是一个在拓扑学及代数学上都具有重要意义的研究对象，获取有关这些自由群的结构的信息的一个主要方法是研究其上的各种自同构作用。

In addition to these major groups a number of smaller "fundamentalist" groups exist.

在除了这些主要群体，若干规模较小的"原教旨主义"团体的存在。

But, fusain is high in density and in HGI. It is usually concentrated in the coals of heavier and finer parts. Less oxygen functional groups exists in vitrain even if the total oxygen is high. However, more oxygen functional groups is found in fusain though total oxygen is low.

指出，镜煤的密度较低、HGI值较小、易富集于密度较氢的粗粒径煤中，尽管其总氧含量较高、但是含氧官能团的数量相对较低，丝炭的密度较大、HGI值较高、易富集于较重的细粒径煤中，其总氧含量尽管较低、但是含氧官能团的数量较高。

Moreover, these nanoparticles were modified with amine groups and phosphonate groups in one step, and further labeled with galactose receptor.

五、制备了一种发蓝色荧光的半导体纳米晶体，促进了短波长发光纳米材料的相关研究进展。

It includes the basic structural theory of groups; groups'actions on sets and the applications of these actions; the basic structures of rings; the properties of uniquely factorized domains; the Chinese Remainder; the extensions of fields; finite fields with applications; the Galois theory with applications.

主要内容包括群的基本结构理论、群在集合上的作用及其应用、环的基本结构和因子分解理论、中国剩余定理、域的扩张理论、有限域及其应用、Galois 理论及其应用。

The invention discloses a method to analyze fish genetic information with mitochondria DNA D-loop controlling zone, which comprises the following steps:(1) extracting genom DNA and mitochondria DNA of fish;(2) designing simple primer in fish mitochondria DNA D-loop controlling zone; possessing twenty one basic groups CAC CCY TRR CTC CCA AAG CYA in upstream primer MitD1-F; possessing twenty three basic groups GGT GCG GRK ACT TGC ATG TRT AA in downstream primer MitD1-R;(3) proceeding PCR reaction under the function of primer;(4) choosing agarose jel electrophoresis;(5) checking sequence for augment mtDNA D-loop gene fragment.

本发明公开了一种利用线粒体DNA D-loop控制区进行鱼类遗传信息分析的方法。它包括如下步骤：(1)分别提取鱼类基因组DNA和线粒体DNA；(2)在鱼类线粒体DNA D-loop控制区设计简并引物：其上游引物MitD1-F有21个碱基：CAC CCY TRR CTC CCA AAG CYA；下游引物MitD1-R有23个碱基：GGT GCG GRK ACT TGC ATG TRT AA；(3)在引物的作用下进行PCR反应；(4)琼脂糖凝胶电泳；(5)对扩增的mtDNA D-loop基因片断进行测序。

In fact, the flavonoids occur in nature as their glycoside derivatives in which one or more sugar groups are attached to the phenolic groups

事实上，黄酮类化合物性质上属糖苷衍生物，它们出现时有一或多组糖与石碳酸组结合。

Methodwe divided 50nih female miceinto 5 groups randomly (10 per group). they were normal control goop,model control group ,treating group (3 groups).

方法取50只nih雌性小鼠随机分为5组，每组10只，分别为正常对照组，模型对照组，治疗组(3组)。

The model includes 7 groups of urban consumers and 5 groups of rural consumers. The proportion of tax burden of every group consumer to that of the consumer of lowest level income combined with the proportion of governable income of every group consumer to that of the consumer of lowest level income decides the progression of the income tax and the turnover tax.

模型中根据我国的二元经济结构，把城镇居民按收入水平分为7组、农村居民分为5组，运用一般均衡原理，分析流转税税收负担在各组居民之间的分布，再把每组居民承担的税负与可支配收入对比，计算我国流转税体系的具体累退程度。

Though mainstream groups like the Natural Resources Defense Council and the Environmental Defense Fund have lined up behind Waxman-Markey, Greenpeace and other dark green groups claim that the bill — which aims to reduce carbon emissions 4% below 1990 levels by 2020 — is too weak.

尽管主流群体（例如自然环境保护委员会以及环境保护基金）联合起来支持维克斯曼-马基法案，但是绿色和平组织和其他激进环保群体宣称该法案-其目标是到 2020 年碳排放量要比 1990 年的水准低 4%以上-太过保守。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。