查询词典 set of two

Among the elements of a Boolean algebra are two distinguished elements: 0, corresponding to the empty set; and 1, corresponding to the universal set.

在布尔代数的元素中有两个特殊的元素： 0 ，对应于空集； 1 ，对应于全集。

At last, it is proved for the two systems that when the control domain U is a bounded, closed set, the reachable set is the same as that when the control domain is the convex of U.It is an advancement for original results.

最后证明了当控制区域U是有界闭集时上述两个系统的等时区域与控制区域是U的凸包时的等时区域相同，推广了有限维的结论。

Realistically designed as a floral spray, the two flower-heads set with oval cabochon rubies within an undulated border of brilliant cut diamonds, the stem set with baguette diamonds, the leaves with eight and brilliant cut diamonds.

栩栩如生的花束造型，两朵花的花瓣镶嵌椭圆形鹅蛋红宝石，波浪形边缘镶嵌明亮切割钻石，花茎镶嵌长方形钻石，叶子镶嵌八斜面及明亮切割钻石

Riding with page stapler, and book and covers cross-nested set after a ride on the wire on the shelves of books and periodicals from the spine creases into the outside by two iron wire set up in a crate clasper is referred to as a horse.

在骑马配页订书机上，把书贴和封面套合后跨骑在订书架上，将铁丝从书刊的书脊折缝外面穿进里面，用两个铁丝钉扣订牢称为骑马订。

Several cluster validity measures have been proposed for confirming the optimal k value. However, the existing methods may not work well for the following two kinds of data sets: the data set containing cluster groups with different densities and the data set in which the cluster groups are extremely close to each other.

目前，已经提出了许多确定最佳k值的聚类有效性方法，但这些方法都不能很好地处理两种数据集：类密度不同的数据集和类间距比较小的数据集。

Under the conditions of compatibility or sub-compatibility between a set-valued mapping and a single-valued mapping, the existence of cotnnlon fixed points for two set-valued mapping and a single-valued mapping in complete metric space is discussed.

在集值映象与单值映象相容或次相容的条件下，讨论了度量空间中两个集值映象和一个单位映象的公共不动点的存在性，改进和推广了一些相应结果。

For the np-hard problem of constructing minimum connected dominating set in ad hoc networks, this paper proposed a novel distributed mcds constructing algorithm called dmca. dmca constructed a mcds for ad hoc networks based on a maximal independent set. in dmca, each node only required the knowledge of its one-hop neighbors and there existed only one shortest path connecting two dominators these were at most three hops away.

摘 要：针对无线自组织分组网络中最小连通支配集创建np难问题，提出了一种分布式的最小连通集创建算法dmca.dmca基于最大独立集的构建，只需要周围一跳邻居的信息，在不超过三跳距离的一对支配节点之间找出一条最短路径。

Most of the families crowded in the back and south area of the Changjiang River. The three provinces, Kiangsi、 Nanking and Zhejiang, located in the back area of the Changjiang River, are dense set. Kiangsi is the densest place. The two provinces, Fujian and Guangdong, located in the south of the Changjiang River, are vice-dense set.

长江下游流域及以南地区集中了绝大多数谱牒序跋所涉家族，其中长江下游流域的江西、南京、浙江三政区是分布的密集地，以江西为最密集，长江下游以南的福建、广东为分布的次密集地。

Difference, and quotient of any two elements in the set is an element of the set.

合内之任二元素之加、减、乘、除之结果仍是此集合内之一元素，意即具有封闭性。

Then, we study Rough Set Theory approach to KDD, develop two algorithms for deriving Reduct and propose the integration of domain knowledge into Rough Set Theory to mining multiple-level rules.

本文在分析了传统的关联规则挖掘算法的基础上，给出了几个挖掘算法和一个递增修正算法；提出了模糊关联规则的概念及其挖掘算法；研究了结合背景知识的多层次关联规则的挖掘方法。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。