判定的

According to the some properties of the differentiation ,I found that the symmetry of the graph is closely related to the first-order differentiation and the second-order differentiation .from this ,I search for a way to identify the symmetry of the functional graph for the direct line or the central symmetry of the functional graph for the some dot .

摘 要：利用导数的一些性质，发现了函数图象的对称性与函数的一阶、二阶导数的密切关系。根据这些关系，找到了一种判定函数图象是否关于某一直线对称或关于某点成中心对称的方法。

The purified N protein was used to coat 96-well plate, each step was optimized, such as coating concentration of recombinant nucleocapsid protein, scample dilutim, chromogen and stop solution as well as concentration.

在此基础上，以纯化的重组N蛋白作为包被抗原，对各种条件进行优化（如抗原的包被，作用时间及底物的选择），确定了判定标准，建立了检测PRRS抗体的间接ELISA方法。

The sensitivities and specificities of myocardialtomography for left coronary artery,right coronary artery and left circumflex artery were 89% and80%,89%and 97%,81%and 97%,respectively. In patients with 1,2 and 3,vessels disease,85%,92%...

结果提示，心肌断层显像方法对冠心病患者心肌受累的部位、范围和程度、受累冠脉的判定提供了一种简便无创、灵敏有效的检测手段，具有较大的临床价值。

The number of polynomial function over a finite commutative ring. This paper is on the basis of the research for the first question.With the structure of finite commutative ring,we know that a finite commutative ring can be expressed by direct sum of some finite commutative local rings.

本文主要基于对问题一的研究，并由有限交换环的构造可以知道，有限交换环可以由一些有限交换局部环的直和表示，于是就将问题简化到对有限交换局部环上多项式的判定。

Analyzing the honing principle of spiral bevel gears based on crossing-axis transmission, the mathematical model of the relative sliding speed of the contact point between honing wheel and gear is achieved. It is determined that the pitch cone of honing wheel depends on the number of teeth in the honing wheel and the angle between the common normal of pitch cones and the plane parallel to both gear and honing wheel axes.

分析了基于交错轴传动的珩齿原理，导出珩磨轮与被珩齿轮在啮合点处的相对滑动速度的数学模型，根据该数学模型可以判定珩磨轮的节锥面是由珩磨轮齿数、公法线和与珩磨轮轴线平行的平面夹角所确定。

Based on analysis of clearances, the paper puts forward a new method for determining the out-of-gauge degree of cylindric goods that can provide reliable and scientific basis for determining running conditions of wagons loaded with out-of-gauge cylindric goods.

本文在对各级限界分析的基础上，提出了新的判定圆柱体货物超限等级的方法，为确定装有圆柱体货物的超限车运行条件提供了可靠的依据。

Simulation results demostrate that the circuit simulation algorithmperforms better and it is applicable to more kinds of graphs,such as undirected graphs,directed graphs,and mixed graphs.6 At the end of the article,the applications of the algorithm in several fields aredescribed and the value of the method is pointed out.

测试表明，本算法在对几类常见图的同构判定中表现优于Nauty算法，而且可以适用于无向图、有向图及混合图等多种类型的图。6最后给出了电路模拟法在应用领域的成功应用实例，指出了电路模拟法的应用价值。

Clarifying the judging criteria for establishing the legal circumstances for demurrer of anticipatory breach and making sure about the cause for and time for performance and the legal effects for the exercise of demurrer of anticipatory breach are significant in the rightfully implementin...

弄清发生不安抗辩权法定事由的判定标准，弄清难为对待给付的发生原因、发生时间以及不安抗辩权的法律效果，对于正确实施不安抗辩权制度，保护债权人的正当合法权益，稳定社会主义市场经济秩序，都具有十分重要的意义

Koza's evolutionary equation machine had to evolve the best equation capable of determining on which of the two intertwined spiral lines each of about 200 data points lay.

柯扎的发展性方程机器不得不演化出具有判定在两条缠绕的螺旋线上各自大约200个数据点的所在的能力的最佳程式。

In chapter two, by using the elements of the matrix we first construct some multiplier factors, then, use the properties of αdiagonally dominant matrix and the techniques of inequalities, we give some new determination conditions for generalized strictly diagonally dominant matrix, these theory have improved some existing results.

在第二章中，利用矩阵某些元素，构造出了几个乘积因子，然后利用α-对角占优矩阵的一些性质，结合放缩不等式的技巧，给出了广义严格对角占优矩阵的几个新的判定条件，改善了已有的某些结果。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐