Less common reagents that attack polymers include acids, bases.比较不常见的浸蚀多聚物的化学浸蚀物有酸 、 碱.Lactones are major chemicals used in the preparation of other organic reagents.内酯是制备其他有机试剂的重要化学品.They experimented with new reagents ...
We decorated the seat of the bier awfully and solemnly.我们把灵寝装饰得庄严肃穆.And the bier was lifted once more, and they proceeded.于是担架又被抬了起来, 他们继续向前走去.He began to wail like a man at a bier.他像抚棺恸哭那样嚎啕起来....
多元醇酸树脂通常用其它树脂改性以获得特殊的特性.Alkyd resins are often modified with other resins to obtain specific properties.这种醇酸是氨基树脂在烘烤时交联而成.The alkyd is cross - linked by the amino resin during baking.高光泽, 高膜厚, 速乾, 硬度, 与醇酸树脂相容性.High gloss...
She was wearing a white ruffled blouse and a blue velvet skirt.她穿着一件有花边的白色上衣和一条蓝色天鹅绒裙子。Her short hair was oddly ruffled and then flattened around her head.她的短发顶心乱糟糟的，周围一圈却很平整，十分怪异。She ruffled his hair affectionately.她情意绵...