词汇：catalyst

n. 催化剂；刺激因素

相关场景

If I run the hydrazine over an iridium catalyst, it'll separate into N2 and H2.
>> 火星救援 The Martian (2015) Movie Script
Not heat, not electricity, not the simplest catalysts.
>> 巨石怪 The Monolith Monsters Movie Script
不是热，不是电，不是最简单的催化剂。