The catalysts and processes for conversion of aromaticswere reviewed , especially those for catalytic hydrodealkylation and transalkylation. 重点阐述了催化加氢脱烷基和烷基转移反应特点和有关催化剂的研究以及国内外主要工艺发展现状.
我学政治,毕业考头等的.I graduated first in my class in political science.他们是在一家高级旅馆里, 待遇是头等的.They are in a superb hotel, getting A - one treatment.头等的骑手正在赛马场赛马.Top drivers are racing at the race course....
Siberian breed of white or cream dog of the spitz family.斯皮茨狗科的白色或奶油色皮毛的西伯利亚狗.She was hardened by the rigours of the Siberian steppes...西伯利亚大草原的艰苦环境使她变得坚强起来。...the hell of the Siberian labor camps...地狱般的西伯利亚劳改营We also sa...
以此为乐的人便是自虐狂。Anybody who enjoys this is a masochist.轻度抑郁, 有自虐倾向, 有自杀想法, 应该怎么办?Spend gently depressed, have self - abuse tendency, have suicidal idea, how should do?据说 自虐 是寂寞国度流行感冒的特征.Said self - flagellation is a lonely l...