(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
something that causes an important event to happen;"the invasion acted as a catalyst to unite the country"
中英词源
catalyst 催化剂
来自catalyse，催化。wWW.WeNtiYI.Com
catalyst (n.)
"substance which speeds a chemical reaction but itself remains unchanged," 1902, formed in English (on analogy of analyst) from catalysis. Figurative use by 1943.
词态变化
复数 catalysts;
权威造句
1. I see my role as being a catalyst for change.
我认为我的角色是促成变革。
来自《权威词典》
2. The workers"demand for better conditions was a catalyst for social change.
工人们要求改善工作条件促进了社会变革.
来自《简明英汉词典》
3. A catalyst is a substance which speeds up a chemical reaction.
催化剂是一种能加速化学反应的物质.
来自《简明英汉词典》
4. It acts as a catalyst in the process of fermentation.
它在发酵过程中起触媒的作用.
来自《简明英汉词典》
5. An example of the table on a Catalyst switch is shown in Example 4 - 3 .
