查询词典 centered system of sets

Now there are manytriangulation algorithms in literatures,not only for plane point sets but alsofor space point sets.Because of the variety of results,we must choose one ofthem as the best in the meaning of some optimality criterion.

不论是平面还是空间散乱数据，都有不少文献讨论三角剖分算法，由于三角剖分的不唯一性，就有个优化问题。

A basic fact about sets is that there are two sets only when their memberships differ. The membership of the set of things that are phlogiston is exactly the same as the membership of the set of things that are Devil-dealing Salem witches. In each case, there are none. So in each case the set of instances is the set with no members, the null set.

按集合观，不承认这里有不同的共相，因为基础事实是，两个集合不同当且仅当成员不同，而这两个集合是相同的，因为都是没有成员的集合，即空集。

A new algorithm of computing convex hulls of plane point sets is presented,based on the research on a large amount of algorithms of computing the convex hulls of plane point sets.

在研究了大量的求平面点集凸包的算法基础上，提出了一种新的构造平面点集的凸壳算法。

Then, the uniqueness of factor of prime number is used to calculate the cut sets and the minimal cut sets.

然后采用素数的唯一因子性质计算割集和最小割集。

The aim of this paper is to build a connection between probabilistic fuzzy sets and r-fuzzy sets.

本文的目的就是在随机模糊集和概率模糊集之间建立联系。

First we compare rough sets and random sets,and derive the relationship between belief function and lower probability.

首先将粗糙集与随机集作了比较，并由此得出了信任函数与下概率的关系。

Company currently employs 1,300 people, covers an area of 150,000 square meters, with CNC machining centers, CNC punch press, heat treatment and other advanced equipment, complete sets of equipment more than 800 sets of 120 million yuan in fixed assets.

公司现有员工1300人，占地15万平方米，拥有数控加工中心、数控冲床、热处理成套设备等先进设备800余台套，固定资产1.2亿元。

The method includes the following steps: firstly, a spherical neighborhood of present sample points is established by using the geometric spherical-modelling theory and all the sample points contained in the spherical neighborhood are adopted as candidate neighbor points, thus not only preserving the effectivity of the dimension reduction capability when data sets are sparse but also getting the advantages of low-sensitivity to isolated points and good stability of the preserved topological structure; then a data relevance matrix more matching semantics can be obtained by relevance measurement based on route clusters to update the candidate neighbor points in the spherical neighborhood and optimize the regular neighborhood space of the present sample points, thus improving the phenomenon that the dimension reduction of sample sets provided with folded curved faces is apt to suffer the integrated-structure distortion in case of heterogeneous data distribution.

首先利用几何开球原理建立当前样本点的球状邻域，将包含在球状邻域内的所有样本点作为候选近邻点，不但能够保持在数据集稀疏情况下的降维性能的有效性，而且具有对孤立点敏感性不高、保留拓扑结构稳定性好的优点。然后利用基于路径聚类的相关性度量得到更符合语义的数据相关性矩阵，用来对球状邻域内的候选近邻点进行更新，优化当前样本点的规则邻域空间，改善了当数据不均匀分布时在带有折叠弯曲面的样本集上降维容易出现整体结构扭曲的现象。

"This year, Nanning City real estate sector to implement low-cost housing and the construction of buildings for the Housing and buy six tasks years to complete construction of all 300 sets of low-cost housing and the resettlement of 300 sets of Housing Units, try to rehouse housing stock."

"今年，南宁市房产部门要落实廉租房和拆迁安置房购建等六项任务，年内全力以赴完成建设300套廉租住房和300套拆迁安置房，千方百计做好安置房源贮备工作。"

Select steam initial temperature from 535℃to 660℃, and initial pressure form16 MPa to 34 MPa, We choose 494 sets of different steam properties in the selected sphere. Making the 494 sets of parameters basing points, We program and analyze how ideal cycle efficiency and relative cycle efficiency and absolute cycle efficiency vary with steam initial properties .

选定蒸汽初温从535℃到660℃，蒸汽初压从16MPa到34MPa范围内的494组不同的蒸汽初参数组，以这些初参数组为基点，编制程序，研究分析了机组理想循环热效率，汽轮机相对内效率，绝对内效率随初参数变化的规律。

The receding calculations and experiment analyses in this subject are built on the blood cast of pig tongue.

本研究课题的前期工作是采用猪舌血管铸型模拟人舌而进行的数值计算与实验分析。

"Each human infection constitutes an opportunity for genetic modification of the virus through reassortment, mutation, or both...."

&每一次人类的感染都暗藏着一次基因修改的机会，无论是通过病毒的整合、突变或者兼而有之。。。。&