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）。