氯族

Reductive dechlorination of polychlorinated biphenyls by zero-valent metal ;2. Zero-valent metals can be used to treat many kinds of pollutants including Organohalides,heavy metal,nitro-aromatic compounds,azo dye,perchloride and nitrate etc.

介绍了零价金属在处理环境污染物中的具体应用，包括卤代有机物、重金属、硝基芳香族化合物、偶氮染料、高氯酸盐以及硝酸盐等，指出零价金属可以通过还原和混凝吸附等作用有效地治理环境污染物，并分析了零价金属处理污染物的特点和应用前景。

The molecular formula of Pyromorphite is [Pb5 (PO4) 3cl],belongs to apatite tribe.

磷氯铅矿属于磷灰石族矿物，分子式为[Pb_5(PO_4)_3cl]。

Furthermore, through molecular structural design, we have also synthesized stable dual functional diphenylether polymer intermediates of ABB' types possessing ortho-dicarboxylic at one aromatic ring and diamine groups at another beginning from Xylenol and 1-Chloro-3,4-dinitrobenzene as the raw materials.

中文摘要本研究应用自氧化法与氢化法两反应，成功而有劾地制备出芳香族含酸酐及二胺基之官能基单体，并进一步经由分子结构设计，从3，4-二甲苯酚及1-氯-3，4-二硝基苯为原料，转化合成出安定性高带有羧基与双胺基双官能基之堑新ABB'型二苯醚中间体，并成功地应用此中间体从事自聚合反应，而合成分歧状聚醚亚醯胺高分子。

The value of current density and the apparent active energy of electroreduction of substituted nitrobenzene depend on the electronic effect of substituted group and space resistance. o,m,p-chloronitrobenzene will be electroreduced to azoxy compounds by taking three electrons, o,m-nitrotoulene and o,m-nitrobenzoic acid will be reduced to phenol compounds by taking four electrons, and p-nitrotoulene will be reduced to the aniline by taking six electrons. According to these results, the electroreduction mechanism of the substituted aryl nitro-compounds was studied in detail.

在电还原过程中，还原峰电流和表观活化能的大小均与取代基的电子效应和空间位阻相关，同时取代硝基氯苯得3个电子将还原生成氧化偶氮苯类化合物：邻、间硝基甲苯、硝基苯甲酸得4个电子将还原生成酚类化合物；对硝基甲苯得6个电子将还原生成胺类化合物，在此基础上，探讨了各芳族硝基化合物的电还原机理。

There is a great difference in the gross composition and biomarker distribution between chloroform extracts of coal and oil from coal measures, which results in a difficulty in oil-source correlation in a coal-bearing petrolific basin.

煤的氯仿抽提物族组成和生物标志物分布特征与煤系原油存在很大差别，导致含煤沉积盆地中煤系原油的油源确认十分困难。

The selective chlorination reaction of the aromatic ring among the aromatic compounds is very important in the economy and environmental protection aspects.

芳香族化合物的芳环选择性氯代，在经济和环保上都是一个重要的课题。

But on the other hand, it cannot be used for concentrated nitric acid, chrome acid mixture, chloric solution, aliphatic solution and balmy hydrogen etc..

但不适用于浓缩硝酸、铬酸混合物、含氯溶剂、脂肪族、芳香氢等介质液体的测量。

It is widely used in the abroad, but there is no manufacture factory demestic.Dimethyl benzene as solvent, Hexachlorocyclopentadiene react with 1,5-cyclooctadiene by the Diels-Alder reaction, this is the common method to prepare DCRP.

得克隆即双环辛烷，含有脂环族氯，它是一种性能优异的阻燃剂，在国外正得到广泛的重视和应用，但目前我国还没有研制和生产厂家。

It is widely used in the abroad, but there is no manufacture factory demestic. Dimethyl benzene as solvent, Hexachlorocyclopentadiene react with 1,5-cyclooctadiene by the Diels-Alder reaction, this is the common method to prepare DCRP.

得克隆即双环辛烷，含有脂环族氯，它是一种性能优异的阻燃剂，在国外正得到广泛的重视和应用，但在我国还没有生产厂家。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐