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...
每天尽量至少吃4片面包。Try to eat at least four slices of bread a day.玛丽·安不想要孩子，至少现在不想。Mary Ann doesn't want to have children. Not right now, anyway.这首诗再怎么晦涩，至少有一点是清楚的。Whatever its obscurities, the poem was clear on at least o...
电化铝箔运输速率与不松度不妥也会爆发这栽障碍.Speed, electro - chemical aluminum foil and tightness improper generates this kind of failure.导热系数随体积密度增加而降低,在单位面积重量相同条件下,膨松度高的非织造布.The heat conduction coefficient decreases with increasing the bul...
McKee suddenly noticed tire tracks on the bank ahead.麦基突然注意到前方岸边的轮胎痕迹。"Doctor McKee?" the man called in an even, sonorous voice.“是麦基博士吗？”那个男人用平稳而洪亮的声音喊道。" I've done some nice things out on Long Island, " asserted Mr...