1)differential form of the first kind,第一种微分形式2)first fundamental forms,第一基本微分形式3)first fundamental differential form of surface,曲面的第一微分基本形式4)the first form,第一形式5)second fundamental differential form,第二基本微分形式6)third fundamental differential form,第三基本微分形式
用法和例句
Wang guo-wei put forward the aesthetic definitions of the first form and the second form in "The Position of Classic Taste In Aesthetics".