化合的

The article adopted the method of orthogonal design using Polyethylene Glycol and Methacrylic Acid to esterify Polythylene-glycol-mono Methacrylate, then using PMA, MAA and Methacrylic Acid Sulfonic Sodium as raw material to synthesize Polycarboxylic type water-reducer.

用正交实验法研究了聚乙二醇和甲基丙烯酸酯化合成聚乙二醇单甲基丙烯酸酯的合成工艺，以该酯化物与MAA和甲基丙烯酸磺酸钠为原料，在引发剂的作用下合成聚羧酸系减水剂。

Firstly, Copolymerization of acrylamide and styrene was carried out in a microemulsion system, in which AM aqueous solution was the continue phase and St was the dispersed phase using ST-80 as surfactants respectively, then hydroxamic functions were prepared with hydroxylamine salt at temperatures of from 60℃ to 90℃.

首先以丙烯酰胺水溶液为连续相，以苯乙烯为分散相，ST-80为乳化剂制成微乳液，在15℃~35℃合成丙烯酰胺与苯乙烯的共聚物；然后采用程序控温方式，在60℃~90℃用硫酸羟胺将共聚物羟肟化合成了一种带有苯环结构的嵌段型氧肟酸类聚合物材料。

The process of esterification of propylene glycol monomethyl ether with acetic acid to synthesize propylene glycol monomethyl ether acetate is investigated using 98% sulfuric acid as catalyst.

研究了以浓硫酸为催化剂，丙二醇甲醚和醋酸酯化合成丙二醇甲醚醋酸酯的过程，考察了醚和酸比例、催化剂用量等因素对反应的影响，并选择甲苯为水萃取剂。

" Carbide: Inorganic compound, any of a class of chemical compounds in which carbon is combined with a metal or semimetallic element."

碳化物：碳与金属或半金属元素化合而成的一类化合物的总称。

On the basis of many experiments, this paper studies the optimization of the technics about using the vitric tuff of Linli in Hunan to synthesize zeolite A.

以经过预处理的玻屑凝灰岩为原料，采用水热反应晶化合成工艺，并对该工艺进行优化，可合成出质量较好的A型沸石产品。

We conclude that the two substances have combined to form the new material.

我们得出这样的结论：两种物质化合而形成新的物质。

Licorice root acid in licorice root with other constitutive chemical combination after burning, may come into being many ring aromatic hydrocarbons having carcinogenesis.

甘草中的甘草酸在燃烧后，与其他成分化合，可生成有致癌作用的多环芳烃。

One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites.

地球外存在生命的理论是基于陨星上存在碳化合物质这一事实的。

The final stage involves passing the gas mixture into the final absorption tower where the sulphur trioxide is hydrated with water to give, at the end of the tower, a 98~99% acid solution.

最后一步是把混合气体通入最后一级吸收塔与水化合，在塔的未端得到浓度98~99%的硫酸。

I understand that a proper diet is crucs crucial for self-transformation and for the transformation of society.

我了解到为了自我转化合转化这个社会，一种正当的饮食习惯是具有关键性的。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。