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

可替代商品越多，替代程度越高，需求对价格的变动就越敏感；

2·Under these conditions, it is possible to quickly obtain carboxymethyl potato starch with higher degree of substitution and viscosity.

在此条件下可以快速获得较高取代度和粘度的羧甲基马铃薯淀粉。

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

分别考察了反应时间、反应温度等对取代度的影响。

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

在所确定的最佳反应条件下，能制备取代度为1．10的羧甲基淀粉醚。

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

考察了碱用量、反应温度、反应时间、丙烯酰胺浓度对反应效率和取代度的影响。

6·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.

羧甲基纤维素钠CMC的溶液为无色透明胶体，透明度随代替度的增加而相应的改善。

7·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的影响程度高度依赖于国际石油价格，以及生物能源与汽油的替代程度。

8·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.

该产品的取代度高，取代基分布均匀，具有高粘度、高钠含量、高酸粘比、高盐粘比的特点。

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

结果与结论：随着相对分子质量和取代度的增加，粒子稳定性增强，临界胶束质量浓度降低。

10·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.

讨论了活化木薯淀粉与马来酸酐的摩尔比、反应温度、反应时间对酯化淀粉取代度的影响。