它是酚与甲醛在一种碱性催化剂作用下缩聚的聚合物。
It is a condensation polymer of phenol and formaldehyde activated with an alkaline catalyst.
第三部分：相转移催化剂作用下合成二吲哚甲烷的研究。
The third part: Synthesis of bis (indolyl) methanes assisted by two phase transfer catalysts.
依据实验结果，提出了固体酸催化剂作用下的液相酯化反应机理。
Based on the experimental results the mechanism of liquid-phase esterification catalyzed by solid acid is suggested.
研究了硬脂酸和氧化镧在催化剂作用下直接合成硬脂酸镧的方法。
The direct synthesis of lanthanum stearate is studied under the reaction of stearic acid to La2O3 in the presence of catalyst.
研究了硬脂酸和氧化镧在催化剂作用下直接合成硬脂酸镧的方法。
Study of synthesis of calcium stearate by direct method in aqueous medium;
对聚苯乙烯体系，在不同催化剂作用下表现出不同的催化裂解行为。
For polystyrene, it was concluded that different catalysts had different effects on its degradation behaviors.
这些原子所包括的诸如铜、锰在内的金属在蛋白质内发挥催化剂作用。
The atoms include metals such as copper and manganese which act as catalysts in proteins.
在一个政客们缺乏明星般魅力的国家，这样的吸引力确实有催化剂作用。
In a country whose politicians lack star appeal, such magnetism matters.
以含甲醛、丙酮的模拟污染空气，研究其在复合光催化剂作用下的光催化降解行为。
Photocatalytic performance of the catalyst was studied under the action of compound photo-catalyst using simulated polluted air containing formaldehyde and acetone.
分析了串行流化床生物质气化制氢的反应机理，并研究了催化剂作用下的气化过程。
The principle of hydrogen production from biomass gasification in interconnected fluidized beds is analyzed;
结合电极中二氧化锰催化剂作用下的氧气还原机理以及物质传递过程，建立数学模型。
A model considering the ORR mechanism and the mass transport process of species was built to simulate the operation of GDE.
叙述了在YS型银催化剂作用下，利用催化裂化于气回收的乙烯制备环氧乙烷的实验研究。
This paper describes the experiment of producing ethylene oxide (EO) by using ethylene recovered from catalytic cracking dry gas in the presence of ys silver catalyst.
酶：在活性生物体中起催化剂作用的物质，它调节化学反应中的反应速率而自身不被改变。
Enzyme: Substance that ACTS as a catalyst in living organisms, regulating the rate at which life's chemical reactions proceed without Being altered in the process.
燃料电池中的氢和氧在催化剂作用下产生的电，能驱动汽车发动机等，排放的只有水蒸气。
In the fuel-cell, hydrogen and oxygen mix in the presence of catalyst to create electricity that drives engine of car and so on, and the water vapor is the only emission.
酶：在活性生物体中起催化剂作用的物质，它调节化学反应中的反应速率而自身不被改变。
Catalyst: Any substance of which a small proportion notably affects the reaction rate of a chemical reaction without itself being changed or consumed.
长链烷基苯是合成洗涤剂的重要原料，是由苯与长链烯烃在酸性催化剂作用下烷基化反应生成的。
Linear alkylbenzenes are important raw materials for the synthesis of washing agent and it is synthesized from the alkylation of benzene with long-chain alkene in the presence of an acid catalyst.
研究了硫氢化钠和2 -溴丙烷在催化剂作用下合成异丙硫醇的反应动力学，建立了动力学模型。
Kinetics for synthesizing isopropyl mercaptan from NaHS and 2-bromopropane in the presence of catalyst was studied; the reaction and the kinetic model of the whole process were investigated.
长链烷基苯是合成洗涤剂的重要原料，是由苯与长链烯烃在酸性催化剂作用下烷基化反应生成的。
The acid sites of zeolite Y catalysts for alkylation of aromatics with long-chain alkenes are determined with IR and TPD.
结果表明，在此催化剂作用下，碘代苯与丙烯酸反应具有较好的立体选择性，只生成反式苯丙烯酸；
The result shows that, under this catalytic reaction, the Heck arylation of iodobenzene with acrylic acid has a good stereoselectivity and only trans-cinnamic acid is produced.
通过硫酸水解，将木屑中的纤维素转化为葡萄糖，在催化剂作用下，用硝酸将其氧化，制取了草酸。
Through the hydrolysis of sulfuric acid, change the cellulose of the wood chip into dextrose, with the help of accelerant oxidize it by using nitric acid can yield the oxalic acid.
氢燃料电池在催化剂作用下，氢分子解离为氢质子并释放出电子，电子在外电路形成直流电输出电能。
The hydrogen molecule is decomposed into hydrogen proton and set free electron under acting on catalyst. And free electron is formed DC in external circuit to output electric energy.
采用正交试验的方法，研究了在无机盐催化剂作用下苯酚双氧水直接氧化制取邻、对苯二酚的合成技术。
Using the orthogonal test , the synthesis of pyrocatechol and hydroquinone by catalytic oxidation of phenol by inorganic salts has studied.
维生素有催化剂作用：它们能促进其他营养物质的合成和降解，因此在控制一般代谢过程中起重要的作用。
Vitamins express catalytic functions: they can facilitate both synthesisand degradation of other nutrients – and therefore play a major role in thecontrol of general metabolism.
催化裂化汽油醚化工艺是使汽油中异构烯烃与甲醇，在树脂型催化剂作用下醚化生成甲基叔烷基醚类，使汽油辛烷值提高。
The etherification process for FCC gasoline is to react methanol with the isoolefines in FCC gasoline to form methyl tert-alkyl ethers on a resin type catalyst, so as to enhance the octane number.
以含1 ~4个羟基的有机醇、环氧氯丙烷和有机胺为原料，在催化剂作用下聚合成有机胺改性聚醚(KL - 1)污水处理剂。
The amine-modified polyether KL-1 sewage disposal agent was prepared with organic alcohol containing 1 ~ 4 hydroxy, epoxy chloropropane, organic amine as raw materials by catalyst.
实验研究了溴代十二烷的异相催化合成（反应是以十二醇和氢溴酸为原料，在预处理后的717阴离子交换树脂催化剂作用下进行的）。
The heterogeneous catalytic synthesis of 1 bromododecane from ROH and HBr is studied . The experiment is carried out with 717 anion exchange resin as catalyst .
如果我恰好比其他人更好地起到催化剂的作用，那么我会考虑为所有启示过我的人送上礼物。
If I should happen to be a catalyst more than others, I consider that a tribute to those who have inspired me.
结合上其他从水中产生氢气的催化剂如铂，这个系统就能复制在光合作用中所发生的水分解反应。
Combined with another catalyst, such as platinum, that can produce hydrogen gas from water, the system can duplicate the water splitting reaction that occurs during photosynthesis.
植物捕获光线，转换成电流，然后利用这一这能量激活催化剂，然后把水分解成氢和氧，这一过程被称为光合作用的亮循环。
Plants catch light and turn it into an electric current, then use that energy to excite catalysts that split water into hydrogen and oxygen during what is called photosynthesis' light cycle.
植物捕获光线，转换成电流，然后利用这一这能量激活催化剂，然后把水分解成氢和氧，这一过程被称为光合作用的亮循环。
Plants catch light and turn it into an electric current, then use that energy to excite catalysts that split water into hydrogen and oxygen during what is called photosynthesis' light cycle.
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