catalytic

柯林斯詞典

1. ADJ In chemistry, a catalytic substance or a substance with catalytic properties is a substance which increases the speed of a chemical reaction. 起催化作用的[ADJ n]
...carbon molecules with unusual chemical and catalytic properties. ...具有不尋常的化學(xué)催化屬性的碳分子。
2. ADJ 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. 促進發(fā)生的; 加速發(fā)生的[正式] [usu ADJ n]
Governments do, however, have a vital catalytic role in orchestrating rescue operations. 但是，政府的確在精心安排的營救活動中，扮縯著重要的催化角色。