key reaction的例句大全

And the key factors influencing purchasing behavior of safety food are: purchasing atmosphere, hazard cognition, hazard consciousness of reaction type, hazard cognition, hazard consciousness of health caring type, others' opinions and age.

而对消费者安全农产品购买行为有较大影响的因素则为：购买氛围，应对型风险意识，风险认知，医学预防型风险意识，他人意见和年龄。

The reactor is the key production equipment in PTA unit. Failure of mechanical seal in the reaction vessel will lead to the shut-down of the whole reaction section which will affect the normal production unit.

反应器是PTA装置进行生产的关键设备，而反应釜用机械密封失效则会导致反应工段全线停车，给正常生产造成很大的影响。

The reaction mechanism of di-n-butyl sulfide is investigated, and the key step of cracking reaction is the rupture of C-S bond to yield thiol-like intermediate in the cracking course of alkyl-sulfide compounds.

在丁硫醚的反应历程中，碳硫键的断裂生成类硫醇物种的一步是其裂解关键步骤。

The key point in the experiment was the condition of ammonolysis reaction. The influence of catalyst, temperature, reaction time was discussed.

重点研究了氨解反应中催化剂和氨解试剂的选择、反应温度、反应时间等工艺参数对反应的影响。

It could be a key factor to induce the inflammatory reaction;

可能是介导炎症反应的关键因子；

Teamwork, self-confidence, control of precision, reaction time, and memory are the key abilities of crew in amphibious armored vehicle during performance at sea.

团队协作、自信、控制精确、反应时间、记忆力是两栖装甲车乘员应具备的重要能力。

The results showed that the second elementary reaction was the key step to the reaction of rate, and its activation barrier leading to 2,6-dichloropyridine was the lowest among the four reaction paths.

结果表明，不同产物以生成2,6-二氯吡啶的活化能最低。

A key function of emotion is to prepare for the reaction.

情绪的一个关键的功能就是为行为做准备。

Conclusion: CD4+ T cell may the key role in the pathogenesis of ACD reaction.

结论：ACD反应CD4+T细胞的主要参与。

Exploration and Practice on the Construction in Key Course of Chemical Reaction Engineering

化学反应工程重点课程建设探索与实践

Low substituted dibenzo [ fg, op] naphthacenes were synthesized by using Friedel-Crafts acylation, tadem aldol-Michael solvent-free reaction and palladium catalyzed dehydrohalogenation cyclization as key steps.

以傅克酰基化反应、串联的Aldol-Michael反应及Pd-催化的脱卤化氢环化反应为关键步骤，合成了低取代的二苯并并四苯衍生物（DBN）。

Based on the batch reactor study, the reaction rules and key factors influencing the mono-and diesters regioselective syntheses were investigated.

通过甘露糖月桂酸酯间歇合成反应过程的研究，揭示了单酯及二酯的反应规律及影响区域选择性控制合成甘露糖月桂酸酯的关键因素。

This article analyzed nucleophilic substitution mechanism of amidation reaction which was the key step in new process, the effect factors such as catalyst type, catalyst volume, solvent and temperature were also involved.

其中酰胺化反应是关键步骤，文章分析了该反应的亲核取代机理及催化剂种类、催化剂用量、溶剂、温度等条件对反应的影响。

The key steps, Friedel-Crafts reaction and Fremy's salt oxidation, were improved on the basis of original literature.

关键步骤弗-克反应和弗瑞麦氏盐氧化反应均在原文献的基础上作了相应的改进。

The dehydration reaction mechanism of Na2HPO4 · 12H2O phase change stored energy material was studied. The thermolysis reaction kinetics and some key data were obtained.

为了解Na2HPO4.12H2O相变储能材料脱水反应的过程和机理，对Na2HPO4.12H2O相变材料的脱水反应动力学进行了研究分析，得出了它们的热分解反应动力学方程和一些重要数据，为以后的研究提供一些依据。

The key component of the homogeneously catalyzed micro monopropellant thruster is its micro thrust chamber, which consists of the catalytic reaction tank and the micro nozzle. The impulse output resolution of the experimental prototype is better than 80 μ Ns.

同相催化的单组元液体推进器，其关键部件是微小型推力室，包括催化反应腔和喷管等结构，试验样机的冲量输出分辨率优于80μNs。

Connected with cell surface, these three regulators inhibit complement activation through suppressing variously key enzyme in the activation of complement and as a result, relieve inflammation reaction.

MCP、DAF、CD59这三种补体调节因子膜连于细胞表面，通过抑制补体激活过程中各种关键酶而达到抑制补体级联反应的目的，从而减轻机体的炎症反应。

a really effective hydrophobia catalyst with stability and high activity is the key to hydrogen isotope exchange reaction between hydrogen gas and liquid water.

实现在25-80℃下氢-水液相氢同位素交换反应，关键是憎水催化剂。

test in labs and industry trial-production shows that the key to prevent those factors is to select the reaction process correctly.

实验室小试、中试和工业试生产研究表明：正确选择反应工艺路线是首要条件。

ethyl 2-( 4-bromomethylphenyl) propionate, key intermediate of loxoprofen, was synthesized from toluene via friedel-crafts reaction and bromination.

以甲苯为原料，对甲苯磺酰乳酸乙酯为Friedel-Crafts烷基化试剂，N-溴代丁二酰亚胺为溴化剂，合成了洛索洛芬的关键中间体&2-（4-溴甲基苯基）丙酸乙酯。