乙烯

The main products are: aluminum net, steel net, stainless steel wire mesh, black wire cloth, galvanized steel wire, iron aluminum net Luo, mining screen mesh, paper net, gas-liquid to worry too much about networks, conveyor belt net, hexagonal wire mesh, welded wire mesh , Chain Link Fence, audio network, nylon net, ethylene network, network brass, copper network, pre-curved flat screen flat-topped, plastic-coating Garden Wai block and sample processing a variety of special-shaped network is widely used in petroleum, chemical , rubber, automotive, medical, aviation, aerospace and other industries to worry too much about, screening, shielding and so on.

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Surface modified nano-sized mgnesium hydroxide was prepared by direct precipitation method with magnesium nitrate hexahydrate and sodium hydroxide as raw materials,and sodium fatty alcohol polyoxyethylene ether carboxylate as modifying agent.The optimum dosage of modifying agent was 0.2% of the mass of magnesium hydroxide,which was confirmed by sediment volume experiment.Modified and unmodified samples were characterized by fourier transform infrared spectroscopy,X-ray diffraction,transmission electron microscope,and tap density test.

以六水硝酸镁、氢氧化钠为原料，脂肪醇聚氧乙烯醚羧酸钠为改性剂，采用直接沉淀法一步合成改性纳米氢氧化镁，用沉降体积实验确定改性剂的最佳用量为氢氧化镁质量的0.2%，通过红外光谱、X射线衍射、透射电镜、表观密度对改性前后的样品进行表征。

The results indicate that the hexyl branches content has dramatically effects on the thermal properties and crystallization behavior. The shear effect on WAXD results is less than that on SAXS results which indicates that PEcO melt is relatively stable in a definite structure scale.

对剪切场下不同辛烯含量的PEcO的结晶研究发现：剪切对广角测试范围的结构影响较小，对小角测试范围的结构影响较大，说明乙烯-辛烯共聚物熔体在一定尺度范围的结构是比较稳定的。

Objective To measure the level of interleukin 10 in the spleen tissue homogenate and in sera of guinea pigs and its significance.

目的探讨三氯乙烯皮肤染毒豚鼠脾组织匀浆及血清中白细胞介素-10（IL-10）表达的变化及意义。

It shows that hydrocarbon structural group is very important in ethyleneyield despite of a...

另外，还对我国乙烯原料的来源途径提出了若干建议。

China mainly natural gas used in the production of nitrogen, followed by the production of methanol, formaldehyde, acetylene, methylene chloride, carbon tetrachloride, carbon disulfide, nitromethane, hydrocyanic acid and extraction of helium and carbon black. Since the 70s, has built more than natural gas and oil field associated gas as raw materials for large-scale ammonia plant, as well as a number of small and medium-sized ammonia plant, so that the national structure of the synthetic ammonia production of raw materials, natural gas share of about 30%; also be built at the same time A system of acetylene gas plant to manufacture Vinylon and vinyl acetate, acetylene gas used in the production of methanol.

中国天然气主要用于生产氮肥，其次是生产甲醇、甲醛、乙炔、二氯甲烷、四氯化碳、二硫化碳、硝基甲烷、氢氰酸和炭黑以及提取氦气。70年代以来，已兴建多座天然气和油田伴生气为原料的大型合成氨厂，以及一批中、小型合成氨厂，使全国合成氨生产原料结构中，天然气所占的比例约达到30％；同时还兴建了天然气制乙炔工厂，以制造维尼纶和醋酸乙烯酯，乙炔尾气用于生产甲醇。

Reaction mechanism for 11,1,2-tetrafluoroethane preparation is carried out through gas phase fluorination by hydrogen fluoride over chromium-magnesium fluorination catalysts with trichloroethylene as main materials and dynamics models are set up.

研究了以三氯乙烯为主要原料，在铬镁氟化催化剂存在下，用氟化氢气相氟化制备1，1，1，2-四氟乙烷的反应机理，建立了动力学模型。

Polystyrene-divinylbenzene is an important hydrophobic catalyst in gas-liquid exchange reactions to separate hydrogenous isotopes.

聚苯乙烯－二乙烯基苯是氢同位素分离技术中气－液交换反应重要的疏水催化剂载体。

This follows by a more gradual formation of ether, hydroxyl and terminal vinyl groups with time and concentration.

此前，随着时间和浓度，逐渐形成更多的醚类、羟基和乙烯基作为终端的产物。

The stability and hygroscopicity of the electrolyte film and its conductivity changing with its constitution and temperature have been studied in the paper.

本文采用聚乙二醇和环氧树脂／三乙烯四胺凝胶组成互穿聚合物网络，制备了IPN——ZnCl2高分子固体电解质膜，讨论了IPN的成因和电解质膜的电导率随组成、温度的变化及其膜稳定性和吸水性。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新