例句與造句

1. Its content may be separated into two parts . the first part contains chapter one and chapter two , which treat of the harmonic maps from surface into symplectic groups and quaternion grassmann manifolds . the second part contains chapter three and chapter four , which treat of local isometric immersions from space forms or riemannian products of space forms into space forms
   全文分四章，內(nèi)容可分為兩部分：第一部分包括第一、二章，主要論涉從曲面到辛群及四元grassmann流形的調(diào)和映射；第二部分包括第三、四章，主要論涉從空間形式或空間形式的局部riemann積到空間形式的局部等距浸入。
2. It's difficult to find quaternion grassmann manifold in a sentence. 用quaternion grassmann manifold造句挺難的