• 报告FDA发布报告,Pew健康基团分析了其中的数字,2009年的2880万(译注:1磅约0.45公斤)增加至2010年3060万磅,增幅6.7%。

    The Pew Health Group analyzed the numbers in the report, the second-ever issued by FDA, which showed a boost of 6.7 percent, from 28.8 million pounds in 2009 to 30.6 million pounds in 2010.

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  • 这些表面活性剂具有较高表面活性相同水基,13戊烷一定的亲水性

    The results showed that these surfactants have high surface activity and same hydrophilic group, and the 1,3dioxolane ring are also hydrophilic.

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  • 结果表明聚体形成取决于取代基团的性质以及溶剂的介电常数溶液浓度

    The results show that the formation of dimers depends on the nature of substituent group, dielectric constant of solvent, and concentration.

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  • 研究憎水基团添加对溶胶体系稳定性氧化硅润湿性以及水汽稳定性的影响

    The influences of hydrophobic group content on the stability of the silica sols and the surface wettability and vapour stability of the silica membranes were investigated.

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  • 另外,XPS能谱表明两种缩聚物中的茂铁基团相当稳定

    XPS of two condensates indicates that the ferrocene group is rather stable in the condensates.

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  • 本文探讨有关聚体形成溶剂极性溶液浓度取代基团性质及络合金属原子的关系

    In this paper, the correlations of the formation of dimers with solvent polarity, concentration, nature of substituent group and central metal were investigated.

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  • 遗传物质DNARNA磷酸酯,磷酸酯基团是连接核酸的基团

    DNA and RNA as the heredity matters, they belong to phosphoric di-ester that is their bridge linkage group.

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  • 试验结果表明腐殖酸基团大分子附着硅酸钙分子的表面上使其不与溶液接触而避免次反应的发生;

    The results showed that the big molecules of humic acid sodium enwrapped dicalcium silicate surface , which prevented dicalcium silicate from contacting with the solution.

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  • 利用SBS中的双键进行环氧化反应,引入环氧基团进行化学改性

    The double bonds of the butadiene soft matrix in SBS were epoxidized in order to incorprate the epoxy groups and modify chemically.

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  • 基团引入,改善了PPV衍生物的电子传输特性。

    The electron transport ability of OPPV was improved due to introducing oxadiazole groups.

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  • 采用化学改性法,选择多官能团酚醛环氧树脂(F—51)乙醇胺进行定量加成反应,合成种在分子结构上具有环氧基团具有亲水性基团的改性树脂。

    According to the molecule design, a kind of modified resin which have both epoxy groups and hydrophilic groups was synthesized from polyfunctional group novolac epoxy resin (F-51) and diethanolamine.

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  • 研究乙基硅油酸酯调和油IR基团振动频率变化,发现乙基硅油与癸酸酯间存在着相互作用。

    Changes of IR group vibrational frequency in the blends of diethyl silicone and sebacate were studied in this paper.

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  • 种含1,2,3 -噻活性基团的双酰肼衍生物及其制备方法用途

    Diacylhydrazine derivatives containing 1, 2, 3-thiadiazole active group and preparation method and application thereof.

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  • 共分为大类,第一类电辅基由第四主元素参与组成的有机基因,有机硫属于第类电基。

    The electroauxiliaries have two types. One is the organic group which contains silicon, tin, germanium and other element of IVA group, the other contains organothio group.

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  • 论文立足合成一种新型含有双键高性能环氧树脂——烯丙基酚A型环氧树脂(DADGEBA),该环氧树脂的基本性能双键与环氧基团双固化特性进行了研究

    This thesis bases on synthesizing a novel high performance epoxy resin (DADGEBA) containing double bonding and deeply study on the basic performance and double-curing behavior of epoxy DADGEBA.

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  • 表面润湿性降低主要表面张力中极性贡献,FTIR分析表明由于氧化硅颗粒表面-CH3非极性基团增加所致;

    It is mainly because the polar force in surface tension decreases which results from the increase of CH3 nonpolar group on the surface of silica particles shown from FTIR analysis.

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  • 蒙脱土存在使缩聚过程甘醇(deg)基团及端羧基基团浓度上升

    It was also found that the contents of diethylene glycol (DEG) groups and the end-acid groups are increased during the polycondensation, due to the presence of nanoclay.

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  • 为了制备具有pH敏感性能的聚糖本文采用将磺胺甲氧嘧啶(SDM)作为pH敏感基团接枝到壳聚糖上。

    To make chitosan having PH sensitivity, in this paper chitosan was grafted by sulfadimethoxypyrimidine (SDM) which is a pH sensitivity group.

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  • 发明合成方法包括使用具有多个反应性含氮基团的聚合模板试剂特别是试剂。

    The synthesis process of the present invention includes using polymerizing template reagent with several reactive nitrogen-containing radicals, especially diamine reagent.

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  • 合成两个系列1,3,4-中心基团弯曲型分子,结合偏光显微熔点仪(POM)观察量热扫描法(DSC)研究了它们液晶性能

    Two series of bent-core liquid crystals with 1,3,4- thiadiazole as the center unit were synthesized, their liquid crystalline properties were studied by POM and DSC.

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  • 发光基团松弛C15次甲基两个面角扭曲相反的。

    As the chromophore relaxes, the twist of the C15 methine bridge about its two dihedral angles is reversed.

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  • 因此可以硼酸晶体阴离子基团电负性出发估算最大次非线性光学系数寻找新型次非线性光学硼酸盐晶体提供了理论依据。

    So, we can estimate the maximal second NLO coefficients of borate crystals from their EN of anion groups, which can be used to search new second NLO borate crystals.

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  • 指出,共振核—CF 2—化学位移不仅第一基团影响,第三邻位的影响。

    These results indicated that the chemical shifts of central -cf2 - group are not only affected by the first and the second neighboring groups, but also by the third neighboring group.

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  • 含有吸电子基团的硝基苯类化合物反应活性明显高于含有供电子基的硝基化合物加氢反应

    The dinitrobenzene with electron-withdrawing group can be hydrogenated much easier than the dinitrobenzene with electron-donating group.

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  • 本文还电子能谱揭示表皮角蛋白上述褪色之间主要反应胱氨酸键被氧化成磺酸基团

    The reactions between the decolorizing agents and keratin in epidermis have been revealed by X-ray photoelectron spectroscopy to be mainly oxidation of the disulfide linkage of cys...

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  • 本文还电子能谱揭示表皮角蛋白上述褪色之间主要反应胱氨酸键被氧化成磺酸基团

    The reactions between the decolorizing agents and keratin in epidermis have been revealed by X-ray photoelectron spectroscopy to be mainly oxidation of the disulfide linkage of cystine to sulf...

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  • 本文还电子能谱揭示表皮角蛋白上述褪色之间主要反应胱氨酸键被氧化成磺酸基团

    The reactions between the decolorizing agents and keratin in epidermis have been revealed by X-ray photoelectron spectroscopy to be mainly oxidation of the disulfide linkage of cystine to sulf...

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