乙酯

The compound of the invention is produced by drying 5Kg of malaytea scurfpea fruit seeds, and cold soaing and extracting for four times by 70% industrial alcohol, decompressing and concentrating lixivium to obtain alcohol extract, mixing by adding a right amount of water and extracting by using Sherwood oil and ethyl acetate.

本发明化合物是干燥补骨脂种子5Kg，用70％工业乙醇冷浸提取四次，浸出液减压浓缩得乙醇提取物，加适量水混溶，依次用石油醚、乙酸乙酯萃取。

Methods Star anise were extracted from Illicium verum Hook.f. using ethanol and ethyl acetate as solvents. After macron absorption resin layer separation, a kind of white fine powder shikimic acid were obtained. The extracted shikimic acid were determined for chemical qualitative analysis.

采用乙醇提取、乙酸乙酯等有机溶剂萃取八角茴香，经大孔吸附树脂柱分离，得到白色精细粉末的莽草酸，并对莽草酸进行化学定性分析，镇痛实验采用扭体法和温浴法，观察腹腔注射莽草酸溶液后小鼠痛阈潜伏期和扭体反应的次数，设阿司匹林和生理盐水为对照组。

Methods Star anise were extracted from Illicium verum Hook.f. using ethanol and ethyl acetate as solvents. After macron absorption resin layer separation, a kind of white fine powder shikimic acid were obtained. The extracted shikimic acid were determined for chemical qualitative analysis. Writhing test and warm bathing test were performed and observed the mice pain threshold latency and writhing reaction times after giving peritoneal shikimic acid extraction solutions.

采用乙醇提取、乙酸乙酯等有机溶剂萃取八角茴香，经大孔吸附树脂柱分离，得到白色精细粉末的莽草酸，并对莽草酸进行化学定性分析，镇痛实验采用扭体法和温浴法，观察腹腔注射莽草酸溶液后小鼠痛阈潜伏期和扭体反应的次数，设阿司匹林和生理盐水为对照组。

After macron absorption resin layer separation, a kind of white fine powder shikimic acid were obtained. The extracted shikimic acid were determined for chemical qualitative analysis. Writhing test and warm bathing test were performed and observed the mice pain threshold latency and writhing reaction times after giving peritoneal shikimic acid extraction solutions. Aspirin and normal saline were used as controls.

采用乙醇提取、乙酸乙酯等有机溶剂萃取八角茴香，经大孔吸附树脂柱分离，得到白色精细粉末的莽草酸，并对莽草酸进行化学定性分析，镇痛实验采用扭体法和温浴法，观察腹腔注射莽草酸溶液后小鼠痛阈潜伏期和扭体反应的次数，设阿司匹林和生理盐水为对照组。

The effect of the content of dimethylaminoethyl methacrylate on the properties of the electrophoretic paint was studied.

研究了甲基丙烯酸二甲胺乙酯用量对改性丙烯酸树脂水分散体和漆膜性能的影响规律。

G. polyhydroxyethyl methacrylate and polyvinyl alcohol. Some potential development and application of the materials are discussed tentatively.

胶原蛋白和一些合成高分子化合物(如聚甲基丙烯酸羟乙酯，聚乙烯醇等)，作为生物材料已得到广泛的应用，而两者形成的复合材料水凝胶具有良好的生物相容性和理化性质，是一类新型的生物材料，具有很大的研究和应用价值。

In order to test the validity of this method, the saponification of methyl acetate, ethyl formate and methyl formate in aqueous solution at 25℃ has been studied.

研究了25℃下乙酸甲酯、甲酸乙酯和甲酸甲酯在水溶液中的皂化反应，其计算结果与文献值相吻合，从而验证了热弛豫法的正确性。

According to the Clausius-Mosotti-Debye equation,the dipole moment of the acetic ether is obtained to be 1.79D,which is close to the literature value.

根据Clausius-Mosotti-Debye方程，求出乙酸乙酯的偶极矩为1.79D，与文献值(1.78D)非常接近。

The Monpac Straight Batons are another innovation from Monadnock to provide a cost effective baton that won't bend, warp or splinter.

乙酸乙酯系列单体防暴棍是莫纳德诺克公司的另一款高性能的新品，不会弯曲、凹陷和碎裂。

This company is always ready to provide acrylamide, morpholine, vinyl acetate, ethyl acetate, and etc. We will be your reliable associator with our honest serve.

我司常年提供丙烯酰胺、吗啉、四氢呋喃、醋酸乙烯、醋酸乙酯等化工产品，相信通过我们真诚的服务，一定能成为值得您信赖的合作伙伴。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。