The syntheses, properties and applications of benzocyclobutene monomer and polymers are introduced.本文介绍了苯并环丁烯单体及树脂的合成 、 树脂的性能及应用.Proteins and DNA are polymers.蛋白质和脱氧核糖核酸都是聚合体.Of this quantity 15 % was added to thermoset ...
I rummaged through the drawers and came up with Amanda's folder. 'Here we are.'我翻遍了抽屉，找出了阿曼达的文件夹。“找到了。”He touched the manila folder which Wainwright had put down.他按了按温赖特放下的马尼拉纸文件袋.The folder was two inches...
他坐在扶手椅里打盹儿.He dozed off in the armchair.小狗躺在门前打盹儿.The dog lay dozing in front of the door.我在屋子后面发现了他,正打盹儿呢.I found him snoozing out back of the house....