catalyst 雅思GREGMAT

a catalyst poison.

毒

a catalyst for the unrest was the passage of a privatization law.

动乱的起因通过了一部私有法律。

Resinification of furfural on the catalyst was the main cause of deactivation.

糠醛树脂导致失活的主要原因。

political agitators who are the yeast of revolution.See Synonyms at catalyst

激起革命的政治鼓动者参见 catalyst

After an eight-month running the GRV-C catalyst in the catalyst inventory reached 90% improved performance of catalyst was obtained.

在应用GRV-C8个月后,其在藏量中达到90％左右时进行了总标定。

The catalysts on studying can divide into two kinds: the transition metal bifunctional catalysts and the nitride, carbide and oxycarbide catalysts of transition metals.

目前,正丁烷脱氢异构可以分为两类,过渡金属双功能和过渡金属氮物、碳物和碳氧物。

the prime minister's speech acted as a catalyst for debate.

首相的演讲对争论起到促进作用。

motorists who retrofit catalysts to older cars.

给老车加的车手。

The research on the amino acid by dehydrogenation alkanolamine(s) in catalyst was recommended.

介绍了国内外醇胺脱氢制备氨基酸的研究发展情况。

a serious breach of trust that was the catalyst for the divorce;

成为离婚的一次严重的背信行为；

A catalyst is a substance which speeds up a chemical reaction.

一种能加速学反应的物质。

It acts as a catalyst in the process of fermentation.

它在发酵过程中起触媒的作用。

Abstract： The research on the amino acid by dehydrogenation alkanolamine(s) in catalyst was recommended.

摘 要： 介绍了国内外醇胺脱氢制备氨基酸的研究发展情况。

Preparation of tetracarbonyl cobaltate sodium, an important homogeneous complex catalyst, was studied.

用红外光谱和碘量法定性、定量测定了四羰基钴钠均相络合的物性能。

The performance of this catalyst for the cross-coupling reaction of iodobenzene with acrylic acid was studied.

研究了该对碘代苯与丙烯酸交叉偶联生成反式-肉桂酸的性能。

The workers’ demand for better conditions was a catalyst for social change.

工人们要求改善工作条件促进了社会变革。

Abstract: The reaction of methyl ethyl ketazine and water to hydrazine hydrate was studied in the catalyst conditions.

摘要： 以丁酮连氮和去离子水为原料，研究了在条件下丁酮连氮水解制水合肼的不同工艺条件；

The synthesis of nerolin bromelia by use of various phase transfer catalysts at different conditionsis studied.

研究了利用种相转移在不同条件下合成橙花素。

Activated carbon as the sorbent and catalyst support was capsulated with ethyl cellulose by phase separation methods.

摘要对兼具吸附和载体功能的孔构活性炭，以乙基纤维素为材料用相分离进行包覆。

The process for preparation of isorotenone from rotenone by catalyst AlCl3 is feasible,and the reaction condition was mild.

实验果表明,三氯铝鱼藤酮异构的方法可行,反应条件温和。