研究了用无溶剂重结晶法提纯2,6二氯甲苯.Purification of 2,6 dichlorotoluene by the recrystallization method without solvent was studied.以对氯甲苯为原料,经氯化、水解反应合成对氯苯甲酰氯,总收率. 6%.%.The total yield and 4 - chlorohenzoyl chloride. 6 % and. %.研究炭管采集空气...
Director Sam Mendes , also making his first film, dares a touch of expressionism.导演萨姆·门德斯也是首次拍摄电影, 但他却大胆地运用了表现主义手法.In February, Dunst checked in to the center after Lindsay Lohan and Eva Mendes stints there.邓斯特在二月在这家治疗中心...
The whole project is imperilled by lack of funds.整个工程因缺少资金而陷于危险之中.You imperilled the lives of other road users by your driving.你的驾驶危及了其他路人的生命安全。You have already imperilled the whole success of our expedition.你已经使我们取得这次远征...