讨论了三 氯甲基 苄醇和三 氯甲基 苄醇乙酸酯的合成方法,介绍了结晶玫瑰的应用.The synthetic method of trichloromethyl - benzyl - alcohol and trichloromethyl - benzyl - alcohol - acetate were reviewed , and the application of rosone were introduced.本文采用异氰尿酸与环...
Most of those attending the funeral stood silently showing little emotion.出席葬礼的人大多都面无表情地静静站着。The dead included six people attending a religious ceremony.死者包括6位参加宗教仪式的人。Those not attending the meeting may vote by proxy.那些...
由10架飞机组成的护航队迎接这位著名的飞行员.An escort of ten airplanes greets the famous aviator.总统座机由五架战斗机护航.The president's plane was convoyed by five jet fighters.女王的游艇由驱逐舰护航.The Queen's yacht was escorted by destroyers....