A polyamide imide was synthesized from trimellitic anhydride and di isocyanate.本文用偏苯三酸酐和二异氰酸酯合成了一种新型聚酰胺酰亚胺.The paper introduces the product of class H polyester - imide solventless impregnating varnish.本文介绍一种不饱和聚酯亚胺类型的H级...
另两个为胸腺嘧啶和胞嘧啶, 即称为嘧啶的单环结构.The other two, thymine and cytosine, are single ring structures called pyrimidines.LBG还 可与黄原胶和角叉胶单环反应,形成坚硬凝胶.LBG also interacts with xanthan and carrageenan helices to form rigid gels.用无溶剂法合成了一种单...