| 释义 |
催化剂cuīhuàjì能改变化学反应速度,而本身的量和化学性质并不改变的物质。通常把加速化学反应的物质叫正催化剂,延缓化学反应的物质叫负催化剂。{catalyst; catalytic agent; substance that brings about changes in rates of chemical reaction while itself remaining unchanged quantitatively and chemically. A positive catalyst increases the rate of a chemical reaction; a negative catalyst retards it.}旧称{formerly called}触媒{chùméi}。 |