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单词
catalytic cracking
释义
WordReference Random House Unabridged Dictionary of American English © 2024
cat
′
alyt
′
ic crack
′
ing,
Chemistry
the reduction of the molecular weight of hydrocarbons by a catalyst, accomplished in a petroleum refinery by a type of chemical reactor (
cat
′
alyt
′
ic crack′er
). Cf.
cracker
(def. 8),
cracking
(def. 1).
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更新时间:2026/4/28 12:44:44