集合的

Preliminaries: An introduction to the basic ingredients of the algebraic system, such as sets and mappings of these sets.

预备知识：介绍代数系的基本要素，即集合，集合的映照。

The proposed method has the merit that the numerical characteristics of stochastic temperature field response can be obtained by analyzing the random temperature field just in one time.3. Perturbed numerical algorithm of nonprobabilistic convex set theoretical models on the temperature fieldThe uncertain parameters of physical parameters and initial boundary conditions of heat conduction are described by the convex model. The perturbation formulas of the upper and lower bounds of temperature field response with unknown-but-bounded parameters are given via the combination of matrix perturbation theory and the convex set theory model.4. Numerical analysis for transient temperature field with interval parametersConsidering the uncertainties of the transient heat transfer, the physical parameters and initial boundary conditions are regarded as interval variables.

该方法具有只进行一次随机温度场分析便可以获得其响应的数字特征的优点。3、温度场的非概率凸集合理论模型的摄动数值解法将结构导热的物理参数、温度场的初始和边界条件等不确定性参数以凸模型加以描述，基于矩阵摄动理论和处理不确定问题的凸集合理论模型的结合，导出有界不确定参数瞬态温度场响应所在集合的上、下界摄动计算公式。4、具有区间参数的瞬态温度场数值分析考虑结构瞬态热传导问题的不确定性，将结构各物理参数和温度的初、边值条件均视为区间变量。

So the cardinal number of "a set of all set "is L=limΧn.

所以"所有集合的集合"的基数是is L=limΧn。

The concepts and characterization of fuzzy and rough sets are presented in this paper.

介绍了模糊集合及粗糙集合的概念和特征。

Hence morphisms do not so much map sets into sets, as embody a relationship between some posited domain and codomain.

不象映射一个集合的元素到另外一个集合，它们只是表示域和陪域间的某种关系。

Also set operations to find the union, intersect, difference set and inclusion relations can be carried out.

然而至今还没有一种理想的方法用来在计算机内表示集合及其完成集合的一系列操作[1]。

A member initializer that specifies a collection initializer after the equals sign is an initialization of an embedded collection.

成员构造者特指等号后面的集合构造者是，内嵌集合的初始化。

In addition, an effective method is proposed to select the β-reducts. First, we calculate a precision parameter value to obtain the subsets of information system that are based on the least upper bound of the data misclassification error. Next, we measure the quality of classification and remove redundant attributes from each subset.

本论文也提出一个根据精确参数来选择最简化集合的方法，这方法首先利用资料错误率的最小上界来决定精确参数值，并利用所获得的精确参数值来寻找资讯系统的子集合；接著计算每一个子集合的分类品质并利用分类品质的量测移除子集合中多余的属性，而删除多余属性的子集合即β的最简化属性集合。

This paper shows that the Lebesgue measure of the singular matrices in R\+\{n×n\} is zero.

证明了 n阶实矩阵集合中奇异矩阵集合的勒贝格测度等于零，n维实空间中 m个随机向量线性无关的概率为

If the supremum belongs to the set, then it is the

如果上确界属于这个集合，则它是这个集合的

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。