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- Based on the mechanism of catalyst deactivation at high temperature, the effect of accelerated aging method on deactivation was studied. 基于催化剂高温失活机理,分析了不同快速老化方法对催化剂劣化强度的影响。
- By IR spectrum, Tyndall effect, electric conductivity, UV Vis and ESR spectra were studied the reaction mechanism of catalyst components. 已知在加氢汽油介质中Ni（naph）2－Al（i－Bu）3－（BF3·OEt2＋n－C8H17OH）体系为胶体催化剂。 本工作应用FT－IR谱结合Tyndal效应、电导率、UV－Vis、ESR谱对催化剂各组分的相互作用进行研究。
- The mechanism of the palladium complex 40 catalyzed Suzuki cross-coupling reaction was discussed. The cause of decomposition of catalyst and appearance of palladium black were studied. 探讨了cis-Pd(Ph_2PCH_2COO)_2(40)催化Suzuki偶联反应机理及催化剂分解析出钯黑的原因。
- Thermodynamic analysis to the reaction system of methanation is given.Reaction mechanism of mathen-ation either for sulfur proof or noon proof, the cause of deac-tivation of catalyst is analyzed. 对煤气甲烷化反应体系进行热力学分析,概述耐硫和非耐硫甲烷化的反应机理,剖析耐硫甲烷化催化剂失活的原因。
- The specificity of catalysts for single? component or mixed catalyst, and the mechanism of rosin disproportionation was researched. 考察了单一组分及它们的混合物催化松香歧化反应的催化性能,初步探讨了松香歧化反应机理。
- The target of this dissertation is to study the stability of catalysts and the mechanism of propane aromatization on metal modification catalysts. 现有芳构化催化剂存在活性较低、稳定性较差等问题,本工作旨在提高芳构化催化剂的稳定性,探讨丙烷芳构化的反应机理。
- The soldier told us where the firing mechanism of a rifle is. 那个士兵告诉我们哪儿是步枪的击发装置。
- The mechanism of local government is far from perfect. 地方政府的结构还很不完善。
- Research %26 Development of Catalyst and Refinery of Feul Oil. 燃料油精制工艺及催化剂的研究与发展。
- The activity of catalyst depends on the loading amount of Cu. 催化剂中Cu的担载量是影响催化剂的活性的一个重要因素，在0-4.;35%25的范围内，伴随着担载量的增加，吲哚的选择率同步增加。
- Initial temperature of catalyst bed is wholly too high. 提高起始反应温度使催化剂床层温度整体过高导致飞温。
- A proper amount of catalyst will speed up the reaction. 添加适量的催化剂，会加快反应的速度。
- By using XPS,before and after the intoxication of mixed oxide catalysts,the various appearance and the composition. valence and chemical mechanism of the active component of catalysts were studied. 运用XPS分析方法研究一系列复合氧化物催化剂中毒前后硫在其表面的各种形态及催化剂活性组分中毒前后的组成、价态、化学机理及其变化。
- A single bell, as in the mechanism of a clock. 钟单只的钟，如时钟的机械装置中报时的钟
- The mechanism of the machine is very complicated. 这台机器的结构是非常复杂的。
- The mechanism of the solar system. 太阳系的机械系统
- The bones and muscles are parts of the mechanism of the body. 骨骼和肌肉是人体的组成部件。
- A single bell,as in the mechanism of a clock. 钟单只的钟，如时钟的机械装置中报时的钟
- The mechanism of the clock is very complicated. 这台钟的机件结构很不简单。
- Many medicines are products of catalysts. 很多内服药就是催化反应的产物。
