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In this paper,we use the historical data to get the experiential distribution function of conditional revenue ratio when we can not determine the type of the allied distribution of the price and revenue ratio,and then we calculate the VaR under a certain price level of the price.

1研究意义VaR是目前证券投资风险管理的重要工具，在数学上，表示为投资组合收益率分布的下α分位数，表达式为：P=α(VaR 0)图1 VaR的图形表示其中，ΔP表示在Δt时间内，某个金融资产的市场价值的变化，α为给定的概率，如图1所示。

Based on the trapezoidal fuzzy number, operator, fuzzy conditional probability and the normalization method are discussed in this paper.

研究表明模糊因果图能有效地用于故障分析，比原来的因果图方法具有更大的灵活性和适应性。

Based on the normal fuzzy number, fuzzy operator and fuzzy conditional probability, normalization algorithm is proposed in this paper.

研究表明：模糊因果图能有效地用于故障分析，比原来的因果图方法具有更大的灵活性和适应性。

With the modified method, the focal field of WSRT telescope was computed. Based on the result, the dense focal plane array was designed for the telescope. The weights of focal plane array were given by the conjugate field method and the far fields of WSRT were computed.

采用改进的算法计算了WSRT望远镜的焦面场，并根据计算结果设计了WSRT望远镜的致密焦面阵结构；用共轭匹配法对阵列单元加权、计算相应的远场方向图，并与采用单个馈源时的远场方向图作比较。

This graph is connected.

这个图是连接图。

An optimal algorithm, which is based on the computation of graph connected components, for fuzzy classification problem is proposed.

给出模糊关系传递闭包在对应模糊图上的几何意义，并提出一个基于图连通分支计算的模糊聚类最佳算法。

A graph in which any two vertices are connected by a path is called connected graph.

一个图中如果任意两个顶点都有一条路相连，则称之为连通图。

For a connected graph G we denote by d the number of pairs of vertices at distance k.

设G是一个连通图，我们用记号d来表示图G中所有距离为k的顶点对的个数。

A simple connected graph is called bicyclic if it has n vertices and n + 1 edges.

双圈图是指边数等于顶点数加1的简单连通图。

If any two nodes in a graph can be connected by a path along edges ,the graph is said to be connected.

如果图中任意两个结点间都能够用一条路径沿着边线连接起来，那么该图则被称为连通的。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。