置换的

In chapter four,we have studied the permutation group coset method in calculations of gauge field vertices which can simplified the calculation of gluonic vertices.Using this method we derived the Feynman rules of trilinear vertex and quartic vertex of gauge theory.

第四章给出了规范场顶角计算中的置换群陪集展开方法，利用该方法可以简化胶子顶角的计算，并导出了规范场的三点及四点树图顶角的Feynman规则。

Many different piston and displacer configurations are possible and examples illustrating the most common types are given below.

许多不同的活塞和置换剂的配置是可能的例子说明了最常见的类型如下。

Triethylamine and ethyl ether were freshly distilled in nitrogen over potassium before use.

对于 三乙胺和乙醚的蒸馏提纯，是在氮气的保护下进行操作的，烧瓶中，加入乙醚，用氮气保护，置换体系中的空气，然后加入K，回流。

Four groups of oligonucleotides were successively cloned in pMD18-T vector to obtain four large fragments. Ligation of these four fragments resulted in a cloned DNA MgE717 coding for the 29～268 amino acid region of gE. Sequencing result showed that there is a mutation at 255 amino acid, Asn instead of Asp.

分四段分别合成，基因拼接得到了改造后的基因片段MgE717，经测序，除了在gE基因+763位核苷酸处存在一碱基置换，导致第255位的氨基酸残基由Asp突变为Asn，其余的序列与PrV鄂A株gE基因的氨基酸序列相符。

On the basis of permutation, the concept of feature number, which is a fixed quantity of Latin square isotopy, is given.

在置换合痕的基础上，提出拉丁方合痕不变量—特征数的概念，进而提出一种判别拉丁方合痕代表元的算法—特征数法，同时提出局部合痕的概念，使拉丁方合痕代表元判别问题在实现时大大加

Business as a market system of a flat, with the only market to maintain input-output system, material, labor, information exchange, or replacement, to seek survival and development.

企业作为市场系统中的一个单位，只有同市场系统保持输入输出关系，进行物质的、劳务的、信息的交换或置换，才能求得生存与发展。

This paper studies knots from a group theory point of view. A new method has been constructed that transforms a knot group to a permutation group, so as to better understand the nature of knots.

本文是从群的角度对纽结进行研究，构造出了一种从纽结群到置换群的表示，可以更好的反映纽结的性质。

For the wavelength assignment in all-optical network, our research include:(1) For the wavelength assignment on ring optical networks with fixed wavelength converters, we use permutation group to study the ability of wavelength converters, and design an assignment algorithm, which can give a good assignment scheme in any general case.

其中，在全光网的波长分配方面，主要包括：（1）对于环形光网中固定波长转换器的情况，采用置换群来刻画转换器的能力，在此基础上提出了一个对于一般情况能够给出较好波长分配方案的算法。

The resolution and renaturation efficiency of lysozyme were found to be independent of the flow rate and gradient time when the volume of mobile phase was kept a constant.

在计量置换模型的基础上首次提出了流动相用量估算公式，用实验对其进行了检验，并得出在保持流动相用量不变的条件下，改变流速和梯度时间对分离度和变性蛋白的复性效率影响不大的结论。

A renaming is a function mapping propositional variable to itself or its complement, a variable renaming is a permutation over the set of propositional variables of a formula, and a literal renaming is a combination of a renaming and a variable renaming.

许道云 ，董改芳，王健改名是一个将变元映射到变元本身或它的补的函数，变元改名是公式变元集合上的一个置换，文字改名是一个改名和一个变元改名的组合。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。