1 ADJ [ADJ n] (化学物质)起催化作用的,有催化性的 In chemistry, a catalytic substance or a substance with catalytic properties is a substance which increases the speed of a chemical reaction. (化学物质)起催化作用的,有催化性的
2 ADJ-GRADED [usually ADJ n] 催化性的;促进性的;刺激性的 If you describe a person or thing as having a catalytic effect, you mean that they cause things to happen or they increase the speed at which things happen. 催化性的;促进性的;刺激性的 [formal]
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Governments do, however, have a vital catalytic role in orchestrating rescue operations.
然而,政府在组织协调救援行动上确实发挥了重要的促进作用。
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