集合

Then, the problem of using yard engines becomes the problem of directed paths decomposition for directed graph.

通过分析运用调机时区集合上的偏序结构特点，可以知道使用调机问题的实质是偏序集合的全序分解问题。

It′s topological properties are studied,three equivalent conditions of which topological space is discrete space and one equivalent condition of which topological space is mediocre space are abtained.

以离散参数马尔可夫链状态空间E为集合定义该集合上的一个拓扑T，研究它的拓扑性质，得到拓扑空间是离散空间的三个等价刻画以及是平庸空间的一个等价刻画。

We attain a sufficientcondition realizing ideal disentanglement by manipulating only one part of the states.Under the condition that one only knows partial information on the set of states weput forward the necessary and sufficient condition for ideal disentangling operations.

我们获得了，为了达到理想的消纠缠，量子态集合所应满足的充分条件；在仅知态集合中量子态的部分信息的限制下，我们得到了理想消纠缠的充分必要条件。

If the vertex set of a graph can be partitioned into two disjoint nonempty sets V_(1) and V_(2), every vertex in V_(1) connects every vertex in V_(2) and there is no edge in V_(1) and V_(2), then we call this graph is a complete bipartite graph. If V_(1) contains m elements and V_(2) contains n elements, then we denote this complete bipartite graph K_.

当一个图中的点集合可以分成两个非空的集合V_(1)及V_(2)，若 V_(1)中的每一点都与V_(2)中的点有边相连，且在V_(1)及V_(2)中的点都没有边相连，则称此图为完全二分图；若 V_(1)中有m个点，V_(2)中有n个点，则此完全二分图记为K_。

We propose an efficient method toextend the network lifetime by splitting the sensor nodes into a maximal number of disjoint sets which are activated successively.

我们提出一种有效的方式来延长网络寿命，这种方式将传感器节点以最大程度分成不相交的集合，每个集合中的传感器节点轮流启动监视目标节点。

If k = 2 and the graph G corresponding to the wireless sensor network is (l+ max{1,l-4})-connected, or k≥3 and G is l(k-1 + 1-connected, then we can find k disjoint sets each of which completely covers all the targets and remains connected to one of sinks.

当k=2并且网络所对应的图G是(l+max{1，1-4})连通的，或者当k≥3并且G是l(k-1+1连通时，我们能够肯定找到k个不相交的节点集合，每个集合中的节点能够完全覆(来源：ABC929c92论文网www.abclunwen.com)盖所有的目标，并且与网关节点连通。

How to get the optimal set of coins and how to accomplish payment with the set are the keys to solve the divisibility problem.

如何求得最优化的电子现金集合以及如何用该集合来完成支付是解决"可分性"问题的关键。

For the model,three sub-models,which are domain knowledge description,concept set and relation set,are realized by combined with the definition of Domain Ontology.

结合领域本体的定义，对数据——知识转换模型从领域知识基本描述、概念集合和关系集合三个角度加以分析，实现了相关的子模型，从而得出了完整的数据——知识转换模型，并基于该模型给出了具体的数据——知识转换文本。

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。

The result is an explicit choice function : a function that takes the first box to the first element we chose, the second box to the second element we chose, and so on.

这个结果是一个明确的选择函数：这个函数映第一个集合到我们选择的第一个元素，映射第二个集合到我们选择的第二个元素，以此类推。

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。