The effects of temperature, the ratio of ammonia, the ratio of air and the space velocity of catalyst upon the conversion, molar yield and selectivity of the reaction were observed, respectively.
考察了反应温度、氨比、空气比和空速对反应的转化率，摩尔收率和选择性的影响。
The low selectivity of masking materials is one of the restrictions on fabrication process of high aspect ratio of micro-structures.
掩蔽层材料选择比低是硅高深宽比微结构实现的限制之一。
The effects of mole ratio of reactants, selectivity and quantity of catalyst and reaction time on the conversion rate have been studied.
并对原料配比、反应时间、催化剂的选择及用量对转化率的影响进行了讨论。
It is showed that the conversion ratio of dodecene and the selectivity of producing 2-alkylbenzene are slightly increased with increasing molar ratio of benzene to dodecene, respectively.
实验结果表明，随着苯烯比的增加，十二烯的转化率和2位-十二烷基苯的选择性均有所增加。
Under optimum operation conditions the conversion ratio of glucose is up to 98.5%, the selectivity of sorbitol 98.0%.
在优化操作条件下，葡萄糖的转化率达98.5%，山梨醇的选择性达98%。
Under optimum operation conditions the conversion ratio of glucose is up to 98.5%, the selectivity of sorbitol 98.0%.
在优化操作条件下，葡萄糖的转化率达98.5%，山梨醇的选择性达98%。
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