Phenyl ( or polyphenyl ) substituted epoxides serve as excellent precursors to phenyl ( or diphenyl ) carbenes.某些苯代 ( 或多苯 ) 环氧乙烷是制取带苯环 ( 或二苯 ) 碳烯的极好原料.The epoxides were obtained with up to 90 % yields in the reaction sys...
A unique 13,000-word timeline runs through the full-colour volume, detailing events from the Earth's creation to the present day.一份独一无二的13,000词的年表贯穿彩印卷的始终，详细记述了从地球诞生到今天发生的重大历史事件。Christie retaliated by sending his fr...
The existentialists say at once that man is anguish.存在主义者立刻说,人类是痛苦.A cry of anguish burst from her lips...她突然痛苦地大叫了一声。She senses that behind the clowning there is a terrible sense of anguish.她感觉到在这种滑稽可笑行为的背后隐藏着极大的痛苦。...t...
What is happening is an abomination.正在发生的事令人非常反感。She regarded smoking with abomination.她对吸烟深恶痛绝.Abner said solemnly , " all heathen idols are an abomination to the Lord. "艾布纳沉着脸说, “ 一切异教的偶像全是对主的亵渎. ”...