• Substitutable goods, the greater the higher the degree of substitution, demand more sensitive to price changes;

    替代商品越多,替代程度需求价格变动敏感

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  • The influences of reaction temperature and time, the amount of sulfuric acid and water on the degree of substitution were investigated.

    分别考察反应时间、反应温度取代影响

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  • The solution of sodium carboxymethyl cellulose CMC is a colorless transparent colloid, and the transparency is improved with the increase of the degree of substitution.

    羧甲基纤维素CMC溶液无色透明胶体透明度随代替增加而相应的改善

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  • The results also show that the extent of impacts from biofuel is highly dependent on international oil prices and the degree of substitution between biofuel and gasoline.

    生物能源对农业及其它产业部门影响程度高度依赖于国际石油价格以及生物能源汽油替代程度

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  • RESULTS AND CONCLUSION: With the degree of substitution and molecular weights increased, the stability of the nanoparticles enhanced, critical micelle concentration decreased.

    结果结论随着相对分子质量取代增加粒子稳定性增强临界胶束质量浓度降低

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  • Study the dosage of the water temperature, etherification, solvent quantity of CMS viscosity and substitution degree.

    研究用量醚化温度溶剂CMS粘度取代的影响。

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  • Elasticity of substitution — a measure of the degree to which two factor inputs complement or substitute for one another in production.

    弹性代换——产品中的两个因素投入产品相互补充或是代替衡量度数

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  • It is suggested that acidizing treatment and titration should be appended to SY 5093 92 to determine the substitution degree of CMC produced with water-medium method.

    建议现行SY 5093—92标准中增加酸化滴定法附则,用来测定水媒生产CMC产品取代

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  • The paper introduces the present research carboxymethyl starch synthesis principle and method, and the substitution degree of carboxymethyl starch test methods were introduced in detail.

    本文介绍甲基淀粉研究现状合成原理方法对羧甲基淀粉取代测试方法进行详细介绍

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  • With the determined parameters of synthesis, we can obtain CMS with high degree of substitution of 1.10 in one step carboxymethylation process.

    在所确定最佳反应条件下,制备取代为1.10的甲基淀粉醚。

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  • His first idea was to get rid of the term next to the highest in degree by a substitution.

    想法置换最高次数小一次的项。

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  • The effects of degree substitution on retrogradation and anti-mycotic were less.

    黏度则先减后增。取代的变化沉降性抗霉菌能力影响不大。

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  • Considering the substitution relationship between standardized product and customized product, this paper focus on the analysis on the market elasticity of customizing degree and price rising rate.

    针对标准产品定制产品有替代关系情况,论文分析市场需求对定制程度弹性、市场需求对加价率的弹性。

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  • The substitution degree of sulfated hemicellulose A was 0.36.

    所得到硫酸酯化半纤维素A产品取代0.36。

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  • The effects of sodium hydroxide, reaction temperature, reaction time, acrylamide concentration on the reaction efficiency and degree of substitution were studied.

    考察用量、反应温度、反应时间丙烯酰胺浓度反应效率取代的影响。

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  • This paper discusses the optimum condition for preparing carboxymethyl starch with high degree of substitution and high viscosity by using the solution isopropanol-water through etherification.

    探讨异丙醇-水作溶剂通过一次醚化,制备取代、高粘度羧甲基淀粉最佳条件

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  • In the paper, an ashing method was improved to characterize the degree of carboxymethyl substitution of carboxymethyl chitosan.

    本文改进了用于测定甲基壳聚糖羧甲基取代灰分分析法

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  • The product is high in degree of substitution, whose substituent distribute equally, has characteristics of high viscosity, high content of sodium, high acid-viscosity ratio.

    产品取代取代分布均匀具有粘度、高含量、高酸、高盐粘比的特点

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  • The effect of assistance of ultrasonic wave on granule appearance of corn starch and the substitution degree were investigated.

    研究超声辅助作用淀粉颗粒形貌产品取代的影响。

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  • Higher feed ratio could lead to higher loading capacity and lower encapsulation efficiency under the same degree of substitution of cholesteryl moiety and molecular weights of parent pullulan.

    取代相对分子质量同时,随着投料增加,药量增加而包封降低

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  • The effects of the molar ratio of activated tapioca starch to maleic anhydride, the reaction temperature and reaction time on degree of substitution of esterified starch were examined.

    讨论活化木薯淀粉马来酸酐摩尔反应温度、反应时间酯化淀粉取代影响

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  • X-ray photoelectron spectroscopy (XPS) indicated that the higher reaction activity of alkyl halide, the more alkyl substitution degree on hydroxyl group of chitosan.

    烷基聚糖进行X射线光电子能谱分析表明随着卤代烷试剂反应活性的增高,发生壳聚糖羟基烷基取代反应增多。

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  • The low degree of substitution cationic starch was synthesized in dry process by using petroleum ether as dispersant. The reaction efficiency was more effective and the product was more homogeneous.

    石油作为分散剂干法制备取代阳离子淀粉反应效率更高产品均一

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  • The low degree of substitution cationic starch was synthesized in dry process by using petroleum ether as dispersant. The reaction efficiency was more effective and the product was more homogeneous.

    石油作为分散剂干法制备取代阳离子淀粉反应效率更高产品均一

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