汉英词典
Chinese-English Dictionary
MEANING OF 催化剂
催化剂 (催化劑)
catalyst
在化学反应中能降低反应物的活化能,使其他物质的反应速度加快,而本身的质量和组成都不改变的物质。如在化工生产中常用铁作催化剂来加快氨合成的速度。一般具有选择性。某些可抑制或延缓反应进行的物质,称抑制剂”,也曾称负催化剂”,如橡胶中加入抗氧剂以延缓老化。
cuī huà () jì
EXAMPLE SENTENCES

催化剂可以分为两种:过渡金属双官能催化剂和过渡金属的碳氧化物催化剂

The catalysts can divide into two kinds: the transition metal bifunctional catalysts and oxycarbide catalysts of transition metals.

在超临界条件下,超临界流体能够抑制催化剂积炭,延长催化剂寿命。

In supercritical reaction, coke deposition can be reduced by supercritical fluid and life of catalyst is prolonged.

这是公司发家致富的催化剂

This was the catalyst for building a multi-billion dollar company.

晶片的两面均包裹着催化剂

Different catalysts coat each side of the wafer.

我认为“三五”行动是一种催化剂

I believe that "3 by 5" was a catalyst.

催化剂烧炭再生是非定态过程。

Catalyst regeneration is an unsteady state process.

本发明首次使用离子液体作催化剂由甲醛合成三聚甲醛,催化剂可供连续进样循环使用。

This invention first time uses ionic liquid as catalyst to compose metaformaldehyde of formaldehyde. Catalyst can be supplied for circular use for continuous sample introduction.

研究人员解释说,这个流程的关键组成成分是一个催化剂-放置在水中的钴金属、磷和电极-这个催化剂从水中产生氧气,另一个催化剂产生氢气。

The key component in the process is a catalyst -- cobalt metal, phosphate and an electrode, placed in water -- that produces oxygen gas from water, while another catalyst produces hydrogen gas.

催化剂譬如一种酶可以降低这种屏障。

A catalyst such as an enzyme can lower such barriers.

酶是高效而专一的生物化学催化剂

Enzymes are highly efficient and specific biochemical catalysts.