鲍勃走上了拉马特拥挤的大街, 他的脑子还是很迷乱.Bob walked down the crowded main street of Ramat, his mind still dazed.我的金条突然融化烧掉,你可曾觉得有点迷乱 吗 ?Have you been slightly dazzled at the sudden fusion of my ingots?这过去的十年对我来说就是生命中的一场迷乱.The past ten y...
Products: cotton lint, fiberboard, compound fertilizer, quality seeds ect.主要产品: 皮棉、中纤板 、 复合肥、棉清油 、 良种.Flicked the lint off the coat.把大衣上的棉绒弹掉.All through the mill they got this cotton dust and lint that fills up the air....
简要介绍以此类方法对合成苯甲醛的研究.Based on the reactions , this paper reports research for synthesizing benzaldehyde.再溴代得到2-溴 -4,5-二甲氧基苯甲醛,收率为91.9%,并分析溴代过程中甲酰基的邻位效应及溴代产物的稳定性.This product with Br 2 was obtained 2 - bromo - 4,5 - hydroxy...