对溶剂、温度做了改进，产率大大提高。 产物经核磁、质谱、红外鉴定。
The yield has been rapidly improved by the improvement in the solvents and the temperature.
在制备阿德福韦酯的实验中，控制反应温度提高了反应产率，在减少了反应副产物的同时也使得产品提纯变得简便。
In the preparation of AD ester, we improve the yield by adjusting the reaction's temperature, make the byproduct fewer and also simplify the product's purification.
通过控制这些因素提高了密胺树脂高效减水剂的羟甲基化率和磺化率，改善了产物性能。
By controlling those parameters, the hydroxymethylated and sulfonated ratios of melamine resin superplasticizer were enhanced, the performances of product also improved.
原位分离发酵技术是近年来兴起的一种新型发酵技术，可使菌体密度较分批培养有显著的提高，最终提高特定产物的生产率。
Application of in situ product removal techniques in ethanol fermentation is a new techniques, which enhance the density of yeast, finally enhance the yield of the specific product-ethanol.
萃取发酵是解决发酵过程中的产物抑制，提高产率及转化率的有效手段。
Extractive fermentation is an effective method to overcome the product inhibition in the fermentation process and increase the yield and the conversion rate.
结果表明，加入预处理工艺可使最终颜料产物的平均反射率值提高10.71%，白度值提高10.14%。其中，镀前煅烧工艺的作用为本试验过程的新发现，并取得较好的试验效果。
The results showed that the average reflectivity and the whiteness of the final products is heightened by 10.71% and 10.14% respectively under the effect of preparation technics.
此外气相氧可提高正己烷转化率，乙烯和丙烯产物选择性，氧的作用在于促进烷烃脱氢并引发碳-碳键断裂反应。
Presence of oxygen turns the reaction from thermo-dynamically unfavorable to favorable. In addition, oxygen in the gas phase may lead to an increase in he-cane c…
通过将渣油进料与一部分重质油产物合并，并对该混合物进行部分加氢可显著提高渣油的最大转化率。
The maximum conversion of residual oil may be substantially increased by combining a portion of the heavy oil product with the residual oil feed and partially hydrogenating this mixture.
在KOH催化条件下，还原性气氛有利于纤维素水热液化转化率及液相产物的产率和品质的提高。
By adding KOH as catalyst, the reducing atmosphere was favorable to improve the conversion of collusion and the yield of liquid products.
在KOH催化条件下，还原性气氛有利于纤维素水热液化转化率及液相产物的产率和品质的提高。
By adding KOH as catalyst, the reducing atmosphere was favorable to improve the conversion of collusion and the yield of liquid products.
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