采用两步交联法合成了可生物降解聚天冬氨酸水凝胶.Biodegradable poly ( L - aspartic acid ) hydrogels were synthesized by a two step cross - linking reaction.智能水凝胶作为药物载体有着良好的应用前景.Intelligent hydrogels have enormous potential in the application as ...
His father doctored there for over 20 years.他爸爸在那儿行医20多年.She doctored in the countryside.她在农村当医生.She had no doubt that it was he who had doctored her milk.她毫不怀疑是他在她的牛奶里下了药。...
The price has quadrupled in the last few years.近几年来价格已经翻了两番。Norway has quadrupled its exports to the EU.挪威对欧盟的出口已经增加了3倍。Sales have quadrupled in the last five years.过去五年中，销售额已增长至以前的四倍。...