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Discrete system models in common use can be expressed in linear regression form and a complex system model can be expressed in combination of several simple system models.

根据离散系统模型结构的这些特点，我们用面向对象的程序设计思想，用&类&的概念来实现各种离散系统模型，从而形成离散系统模型类库，并可由此派生出其它更具针对性的模型类。

Phthalic acid esters are widely used in the many fields of industry. So many countries including China have come to pay attention to them and make up the codes for limiting the content in some products such as textile. By combining international codes, the thesis selects coating and textile that have close relative with people as objections. The research results are as follows:1. The thesis has established the textiles preparation method by a series of experimentations such as extraction solvent, extraction time, solid-phase extraction. The average recoveries of eleven phthalates are from 80.30% to 98.00%, and the relative standard deviations from 0.59% to 2.56%, the results show that this method is accurate and credible.2. The thesis set up the simultaneous determination of benzene, toluene, xylenes and phthalates in coatings.

邻苯二甲酸酯类化合物被广泛地应用在工业领域的各个方面，国际上已经开始重视邻苯二甲酸酯作为一种内分泌干扰素的危害性，对在一些产品中的用量作出了限制，但没有具体的分析测定方法，本论文结合国际法规选择了与人们生活密切相关的涂料和纺织品来研究其中邻苯二甲酸酯类环境激素的测定方法，研究内容如下：(1)通过对提取溶剂、提取方式、提取时间的选择实验以及固相萃取的一系列条件实验，首次建立了纺织品中测定邻苯二甲酸酯类环境激素的前处理方法，并对分析方法作了准确度、精密度验证。

Under thesystem analysis to national typical case study,the development reality of metropolitan areaand related norm and regulations,the text highlights a classification system consisting of 9categories,28 large suborders and 50 small suborders and investigates several typicalrecreational space structures and indicators.

在对国内几种典型方案的分析的基础上，针对大都市区发展的实际情况，参考有关标准和规范，从城市用地性质出发，尝试提出9大类、28中类和50小类的分类方案，并结合实际对几种典型的游憩空间结构和指标进行深入分析。

Very good results were obtained in logP modeling for carboxylic acid, ethanol, phenol, aldehyde, ketone, ether, ester and amine. A QSPR model of logP for many kinds of substances was established by multi-linear regression with the first-order molecular connectivity valent index 〓 and the number of hydrogen bonds N as two patameters.

利用这两类结构参数，分别建立了脂肪族羧酸、芳香族羧酸、醇、酚、醛、酮、醚、酯、胺类物质的疏水性常数定量模型；在此基础上，建立了包含8类基本有机物144种物质的疏水性常数的定量模型，并提出logP的简化模型。

This model not only provides a new method to calculate~(31)P chemical shifts of phosphines,but also establishes the rela...

所建模型不仅在一定程度上阐明了膦类化合物31P NMR谱化学位移与其分子结构信息之间的关系，同时也提供了一种从理论上计算膦类化合物31P NMR谱化学位移的新方法，并对深入了解膦类化合物结构与性能的关系及解析、预测其31P NMR谱提供了一定的理论依据。

The main purpose of this paper is to propose a unsupervised clustering-based method to pre-extract the support vector for training the SVM in light of the theory that the classification facet of SVM is determined by support vector only. By analyzing the limitation existed in current multi-class classification methods, and taking into account comprehensively the separability of the class set of nodes, a hierarchical classification method of SVM binary tree based on tree classifier with optimized overall performance is designed.

针对SVM的分类面仅由支持向量决定的理论，提出一种基于无监督聚类方法来预抽取支持向量，训练向量机；并分析现有多类分类方法所存在的弊端，基于综合考虑节点的类集合可分性，设计一种基于树分类器整体性能最优的SVM二叉树层次分类方法。

Furthermore, the structure of drift trammel net, set longline of baited hooks and jig and their fishing methods were described.(2)The fishing gears in Hejiang section were divided into drift trammel net, set longline and jig according to the fishery status in Hejiang section."Number of fishing boat day" was selected as the unit of fishing effort.

2根据合江江段的渔业现状，将该江段的渔具分为三层流刺网、饵钓、滚钩和其它偶见渔具四类，以&船·天&作为捕捞努力量的单位，用单位捕捞努力量渔获量乘以年捕捞努力量分别得到这四类渔具的年渔获量，并将这四类渔具的年渔获量相加估算出合江江段1999-2002年的渔获量分别为104563.464kg、65564.231kg、123684.966kg和107285.272kg。

A method to calculate slop-over value is presented according to the relationship between operation class and objective class.

利用模式识别方法，依据操作类和目标类之间的对应关系，提出&越类量&概念，并给出计算方法。

In Taiwan, cephalopods are traditionally used and prized as foods with high market price.

在台湾的历史传统里，头足类很早即是重要的渔业资源并具有相当不错的市场价格，在台湾周围海域所产的头足类中以软丝的口感最为人所喜好，其单位价值亦是所有锁管类渔获中最高的一种，其分布主要集中於台湾的东北部、南部沿海及澎湖附近海域。

The algorithm was used via the Yeast Saccharomyces cerevisiae cell cycle gene expression profile from SGD to co-express clusters. Compared to the experiment analyzed by Spellman for function al genomics, the efficiency of this algorithm in the functional genomics can be proved.

把此算法应用于斯坦福大学酵母细胞周期表达数据库的数据进行共表达聚类，并将实验结果与Spellman按照功能基因组学进行聚类所得结果进行了对比，证明了所给算法在功能基因组学聚类上的有效性。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。