催化作用提高了反应的速度。

Catalysis has increased the rate of reaction.

但是，捐助方最终只能起到催化作用。

But in the end, a donor can only act as catalyst.

物质只是一种催化作用，或是锦上添花的作用。

Materials can only serve as a catalyst or add more satisfaction to our life.

酸处理铌酸对合成2,5-二甲基- 2,4 -己二烯催化作用的研究。

Study on Acid Modified Niobic Acid Catalyst for Synthesis of 2, 5 - Dimethyl - 2, 4 - Hexadiene.

考察了大孔强酸性树脂对1，4 丁二醇脱水制四氢呋喃的催化作用。

The catalysis of big pore strong acid resin for 1,4-butanediol dehydration to tetrahydrofuran is investigated.