catalyst是什么意思

短语搭配

(1)reforming catalyst重整催化剂

双语例句

(1)The catalyst for the riot was a long-standing disappointment.

该暴乱的催化剂是人们积攒已久的失望情绪。

(2)The catalyst required for this chemical experiment lost its proper activity.

本次化学实验所需的催化剂失去了应有的活性。

(3)Workers' dissatisfaction with wages has been a catalyst to the factory strike.

工人们对薪资的不满促动了工厂的罢工活动。

(4)It just needs a catalyst to set the bomb off.

只要一个催化剂就能把炸弹引爆

(5)I see my role as being a catalyst for change.

我认为我的角色是促成变革。

(6)I very much hope that this case will prove to be a catalyst for change.

我非常希望这件事终将成为促成变化的催化剂。

(7)Phosphomolybdic acid is widely used as active catalyst owing to its acid and redox activity.

磷钼酸具有良好的酸性和氧化还原活性，被广泛用作活性催化剂。

(8)The optimal conditions for synthesis of alkali green 4 include the carbamide and zinc chloride as catalyst, chloranil and bichrome.

合成碱绿色4的最佳条件包括：尿素和氯化锌作为催化剂，四氢呋喃和双色。

(9)Trimethylaluminum(TMA) was synthesized by reaction of triethylaluminium (TEA) with methyl bromide on iron-stibonium complex catalyst.

以三乙基铝（茶）和甲基溴为原料，在铁-锑络合物催化剂上反应合成了三甲基铝（TMA）。

同义词

n. 催化剂；刺激因素

反义词

词根词缀

同前缀词 cata- 向下, 相反, 离开

(1)catastrophe n. 大灾难；大灾祸；结局

(2)catapult n. 弹射装置；弹射器；弩炮；弹弓；石弩

(3)catalina n. 远程轰炸机

null lyst-

同根词

词根 catalyst

(1)catalytic adj. 接触反应的；起催化作用的n. 催化剂；刺激因素

(2)catalytically adv. 催化地

(3)catalysis n. 催化作用；刺激作用

释义

n.

a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change

催化剂；触媒剂。

figurative a person or thing that precipitates an event

〈喻〉 促进事情发展的人（或物）

the prime minister's speech acted as a catalyst for debate.

首相的演讲对辩论起到促进作用。

词源

"early 20th cent.: from CATALYSIS, on the pattern of analyst."

考纲分布

近9年出现1次

重要程度: 3星

100%; n 催化剂

考纲释义

( 1)n. 催化剂

真题例句：

The microwave and fast-food chains were the biggest catalysts (催化剂) .

微波炉和快餐连锁店是最大的催化剂。[2020年 CET4 阅读理解B]

(1)Anyone else see the flaw in this plan? We need a social catalyst.

你们发现这个计划的瑕疵没？我们需要社交方面的催化剂。《The Big Bang Theory Season 1》《生活大爆炸 第一季》

(2)I run the hydrazine around an iridium catalyst. It will separate into N2 and H2.

我将肼用铱催化，它会分解为氮气和氢气。《The Martian》《火星救援》