Isomerization occur during bromine reaction, that is mean secondary allylic configuration changes into primary allylic configuration.在溴化反应过程中存在分子结构重排, 即溴代仲位烯丙基构型向溴代伯位烯丙基构型发生转化....
Carpe diem. Seize the day, boys. Make your lives extraordinary.人生就应该是快乐的，要抓住每一天，孩子们，让你们的生活变得非凡起来。On Sunday Cohen lay around the house all day.科恩星期天一整天都在家无所事事。Someone comes in every day to check all is in order.每天都有人来检查是否...
Absorbed by solvent, butanone - toluene mixture was analyzed by gas chromatography ( GC ).利用溶剂吸收采集丁酮甲苯混合组分,并用气相色谱 ( GC ) 测定.In this thesis, the Henry coefficients of DMF, butanone and toluene in DBP were measured.论文测定了DM...
She greeted the visitor cordially, inviting her to stay for breakfast.她亲切地招呼着客人, 请她留下来吃早饭.You are cordially invited to come and give guidance.务请光临指导.He greeted her most cordially.他向她热情地打招呼....
I was afraid the sickness had sapped my strength...我担心患病已让我元气大伤。The series of steep hills sapped the cyclists’ strength.一连串坡度很大的小山耗尽了骑车人的气力。The series of steep hills sapped the cyclists'strength.一连串坡度很大的小山耗尽了骑车人的气力....
首相已委任一位平民为国防部长。The Prime Minister has appointed a civilian as defence minister.新委任此职务者the new appointee to the post这一委任使人欣慰.This appointment was greeted with relief....