查询词典 acetic

Nd_2O_3 was used as catalyst for estrification of Acetic acid with propanol and discussed thevariant conditions in reaction of esterification.

以三氧化二钕为固体催化剂，实现了乙酸和丙醇的酯化反应，讨论了催化酯化的各种影响因素。

The conversion of acetic acid and the selectivity of propylene reached 85.43% and 98.52%, respectively.

本文还对乙酸与丙烯直接酯化合成乙酸异丙酯的动力学进行了研究。

Methods: Ligating pylorus method, acetic acid and reserpine were used to induce gastric ulcer models in rats and mice, respectively.

目的：观察比较胃益油剂、胃益糖片、胃益胶囊3种药物对动物实验性胃溃疡的影响。

Rat experimental ulcers were induced by stress(swimming in cold water for 30 min), administration of acetic acid or indomethacin, and ligation of gastric pylorus.

大鼠溃疡造型用应激法(冷水中游泳30 min)、醋酸法、消炎痛法和幽门结扎法诱导产生。

With alcoholic fermented Pyracantha fortuneana wine as the main raw material,the initial alcohol concentration,temperature,pH and initial inoculum density in acetic fermentation were studied in a single-factor experiment.

以火棘果酒为主要原料，在醋酸摇瓶发酵中，对初始酒精度、温度、pH和接种量进行单因素试验，试验结果以醋酸含量的多少为指标来评价。

The fruit of Rosa laevigata Michx and Pyracantha fortuneana were used to produce a health vinegar beverage through alcoholic fermentation and acetic acid fermentation.

以金樱子果、火棘果为原料，经过酒精发酵和醋酸发酵生产保健醋饮料。

Pyracantha fortuneana fruit vinegar ; acetic fermentation ; orthogonal experiment ; fermentation technology

火棘果醋；醋酸发酵；正交实验；工艺条件

The pyroligneous acid also contains acetic acid which can be converted into calcium acetate, from which acetone can be obtained as in.

焦木的酸并且包含可能被转换成钙醋酸盐，从丙酮作为可能被获得的乙酸。

A simple and highly sensitive new kinetic catalytic fluorimetric method was proposed for the determination of trace chromium,based on the catalytic effect of trace amounts of chromium on the oxidation of Pyronine Y by hydrogen peroxide in acetic acid-sodium acetate buffer medium leading to a decrease in the fluorescence intensity.

在HAc-NaAc缓冲体系中，痕量铬对过氧化氢氧化吡咯红 Y的氧化还原反应有催化作用，使吡咯红 Y荧光减弱，据此建立了催化荧光法测定痕量铬的新方法，同时考察了该催化反应的最优条件及动力学性质。

Kinds of organic acids (pyruvic acid, malic acid, lactic acid, acetic acid, citric acid and succinic acid) presented in beer were intensively studied in this paper.

本文以对啤酒质量有重要影响的6种有机酸(丙酮酸、苹果酸、乙酸、乳酸、柠檬酸和琥珀酸)为研究对象，确定了淡爽型啤酒的最佳有机酸组成，并研究了酿造过程中有机酸的变化及影响因素。

If you sell copiers,speak about image and productivity.

如果你是卖复印机的，你就多谈些图片和效率问题。

She blatted the news .

她透露了消息。