1·Many policy makers insist that consumer spending is a strong economic catalyst and, therefore, a paucity of retail stores is a contributing factor to low-performing economies.
许多政策制定者坚持认为，消费者支出是一个强大的经济催化剂，因此，零售商店稀缺是经济表现不佳的一个促成因素。
2·I very much hope that this case will prove to be a catalyst for change.
我非常希望这件事终将成为促成变化的催化剂。
—— 《柯林斯英汉双解大词典》
3·Phosphomolybdic acid is widely used as active catalyst owing to its acid and redox activity.
磷钼酸具有良好的酸性和氧化还原活性，被广泛用作活性催化剂。
4·The optimal conditions for synthesis of alkali green 4 include the carbamide and zinc chloride as catalyst, chloranil and bichrome.
合成碱绿色4的最佳条件包括：尿素和氯化锌作为催化剂，四氢呋喃和双色。
5·Trimethylaluminum(TMA) was synthesized by reaction of triethylaluminium (TEA) with methyl bromide on iron-stibonium complex catalyst.
以三乙基铝（茶）和甲基溴为原料，在铁-锑络合物催化剂上反应合成了三甲基铝（TMA）。
1·The petrol composition influent emission of the engine markedly. It is especially important to control petrol composition particularly after three way conversion catalyst were installed in modern car.
汽油成分对排放有较为显著的影响，特别是在现代汽车普遍安装三元催化器后，控制汽油成分就显得尤其重要了。
2·This gas sample is directed to an optional sulfur oxidation catalyst or a ozone generator 36 and through line 38 to a multiport valve 28b.
将该气体样品引入任选的硫氧化催化器或臭氧发生器36中，然后通过管线38到达多通阀28b。
3·The results indicated that the noble metal content in catalytic converter of high emission vehicle is lower than the one in new catalyst converter;
结果表明：排放劣化车催化器中的贵金属含量普遍低于新鲜催化器中的贵金属含量；