单词 catalyst 释义 catalyst Chem.|ktlst|[f. catalysis, on the analogy of analyst.]A substance which when present in small amounts increases the rate of a chemical reaction or process but which is chemically unchanged by the reaction; a catalytic agent. (...
单词 catalyst 释义 catalyst n 1 substance that speeds up a chemical reaction without itself changing 催化剂; 触媒剂. 2 (fig 比喻) person or thing that causes a change 促使变化的人或事物 The offer of a new job provided just the catalyst she needed. 这份新...