Catalysis

[kə'tælɪsɪs]

解释:

(noun.) acceleration of a chemical reaction induced the presence of material that is chemically unchanged at the end of the reaction; 'of the top 50 commodity chemicals, 30 are created directly by catalysis and another 6 are made from raw materials that are catalytically produced'.

校对:托妮--From WordNet

解释:

(n.) Dissolution; degeneration; decay.

(n.) A process by which reaction occurs in the presence of certain agents which were formerly believed to exert an influence by mere contact. It is now believed that such reactions are attended with the formation of an intermediate compound or compounds, so that by alternate composition and decomposition the agent is apparenty left unchanged; as, the catalysis of making ether from alcohol by means of sulphuric acid; or catalysis in the action of soluble ferments (as diastase, or ptyalin) on starch.

(n.) The catalytic force.

录入:麦克唐纳

解释:

n. (chem.) the decomposition of a compound and the recomposition of its elements by the presence of a substance which does not itself suffer change as in fermentation.—adj. Catalyt′ic.

阿尔玛编辑