酯化了的

The catalytic esterification of acetic anhydride and nine phenols were investigated in the presence of complex resin catalyst at 20 ℃,and its mechanismes were discussed.

研究了 2 0℃时，醋酸酐与九种酚在复合树脂催化剂下的催化酯化反应，并探索了其反应的机理。

The internal structure and working principle of magnetic agitator were introduced for esterification reactor of polyester plant.

介绍了聚酯装置中酯化反应釜磁力搅拌器的内部结构和工作原理，对磁力搅拌器运行中多次出现的轴承卡死等故障进行了分析并提出了解决措施。

Methods Appraised the major technological processes for synthesising the benzocaine.

方法评价了合成苯左卡因的主要合成路线，在较优合成路线的基础上进行了试验研究，在酯化反应阶段进行了工艺改进并优化反应条件。

The reliability of this titration calorimetric model for studying thermokinetics of first-order reactions has been verified by the experimental results obtained.

本文采用此模型，研究了去离子水溶剂中乙酸乙酯皂化反应的热动力学，实验结果验证了该模型研究一级反应热动力学的适用性。

In this article, the heteropoly acids with Keggin structure are choosed as catalysts. Esterification of mixed dibasic acids and carbinol were studied.

杂多酸作为环境友好催化剂得到了广泛地应用，本文选用Keggin型杂多酸为催化剂，对混合二元酸与甲醇的酯化反应进行了研究。

The kinetics of esterification is discussed and kinetic equation set up.

探讨了酯化的动力学，并建立了动力学方程。

The effects of esterification temperature, feed rate and method on demulsifying results were investigated.

实验考察了酯化温度、共聚单体量、加料速率和方式等对破乳性能的影响，确定了最佳工艺条件。

Firstly, the methanolysis of different oils by alkali-catalysis and lipase-catalysis werestudied.

首先，本文分别采用酶法和化学法对不同来源的油脂和甲醇转酯化反应进行了考察和优化，对不同催化剂催化生产生物柴油进行了对比。

The celery seed oil was extracted with Soxhlet extraction method.

采用索氏提取法提取了天津实心芹菜籽油及美国西芹籽油，提取的油用氢氧化钾-甲醇法酯化后，对其进行了GC/MS分析。

Wuliangye series of wine with a unique "bag song" agent for the saccharification and fermentation, fermentation temperature, the formation of different strains, enzymes, beneficial to esterification, flavor and aroma, and the accumulation of a product's unique style; 5 food formulations, the aroma of different food and wine producing features together form a more rich, strong and comprehensive style features in the liquor came out top.

五粮液系列酒以独特的&包包曲&为糖化发酵剂，发酵的不同温度，形成不同的菌系、酶系，有利于酯化、生香和香味物质的累积，构成产品的独特风格；五粮配方，将不同粮食的香气和产酒的特点融合在一起形成了更丰富、浓厚、全面的风格特点，在浓香型白酒中独占鳌头。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。