单词 | catalytic cracking |
释义 | catalytic crackingnoun : cracking of petroleum oils (as gas oils or diesel oils) especially for the production of high-octane gasoline in the presence of a catalyst (as clay) in various forms (as pellets or beads either stationary in a fixed bed or moving through the oil or as a fine powder fluidized by a stream of air or hydrocarbon vapors) —distinguished from thermal cracking |
随便看 |
|
英语词典包含469781条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。