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dahai10234金虫 (初入文坛)
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[求助]
求翻译成英文，一小段
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| 以表3所示110种硅烷和硅氧烷化合物作为样本，采用基团贡献法研究分子结构与摩尔折射度和摩尔体积之间的关系。利用实验数据计算各化合物的摩尔折射度和摩尔体积，对每一样本化合物分别采用式（3）和（4）以描述官能团种类和数量与化合物摩尔折射度和摩尔体积之间的关系，采用“麦夸特法+通用全局优化法”的算法分别对摩尔折射度和摩尔体积方程组进行非线性回归，得到各基团摩尔折射度贡献值Gi和摩尔体积贡献值Vi（表2）。利用回归得到的各基团摩尔折射度的贡献值和硅烷、硅氧烷或聚硅氧烷的分子结构，可计算得到各化合物的摩尔折射度。 |
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dahai10234
金虫 (初入文坛)
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6楼2013-01-17 12:56:11
【答案】应助回帖
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As shown in profile 3 , and 110 kinds of silane and siloxane compounds as sample, The relationship between molecular structure and molar refraction and molar volume was studied by the group contribution method . the molar refraction and molar volume of all kinds of compounds were calculated by using the experimental data. the relationship between functional groups of species and quantity of compounds with molar refractivity and molar volume, were describled by type (3) and (4) for each sample compounds respectively. using "Marquardt + universal global optimization method" algorithm, for the molar refraction and molar volume equations are nonlinear regression respectively, the molar refraction contribution value Gi and molar volume contribution value Vi (Table 2) were obtained. Molecular structure by using the regression results of the molar refractivity contribution value and silane, silicone or silicone, can be calculated by the compounds of the molar refraction. |
2楼2013-01-17 10:45:54
3楼2013-01-17 11:05:52
dahai10234
金虫 (初入文坛)
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- 专业: 应用有机化学
4楼2013-01-17 12:41:10
