She had slipped into a coma by the time she reached hospital.到医院时，她已陷入昏迷。He is in a coma and on a life-support machine.他处于昏迷中，靠呼吸机维持生命。That night he sank into a deep coma.那晚他陷入了深度昏迷。...
A new method for determining the bromine content in brominated polystyrene was studied.提出了测定溴化聚苯乙烯中溴含量的方法.Isomerization occur during bromine reaction, that is mean secondary allylic configuration changes into primary all...