The gelatinize layer of adhesive is divided into rubber and acrylic.涂胶层所用的胶黏剂不合橡胶不系和丙烯酸不系两栽.Rheological property of the blent system of modified konjac glucomannan and styrene - acrylic emulsion is studied.研究了改性魔芋葡甘聚糖与 苯...
你未经许可就把车开走是不应该的.You were wrong to take the car without permission.前一段他很辛苦, 现在休息一星期是应该的.He has worked very hard recently, so he deserves a week's holiday.你做这件事是不应该的.You are quite wrong in doing this....
那样做虽不能将污物全部冲掉，但应该能疏通一些散发恶臭的排水管。That won't flush out all the sewage, but it should unclog some stinking drains.得花些钱疏通那个敲诈者, 否则他会毁坏你的声誉.The blackmailer will have to be bought off, or he'll ruin your good name.他们正...