中文摘要：

构造行波解是研究非线性偏微分方程的一个重要分支．主要描述了使用修改的（G’／G）一展开法求解非线性偏微分方程的过程．借助符号计算系统Maple软件，将此方法应用在求解Sharma-Tasso-01ver方程中，获得了该方程的一些新的行波解，例如u1、u2、u4和u5．这些新的结果有助于理解Sharma-Tasso-01ver方程的物理意义．

英文摘要：

Constructi0n of traveling wave solutions is an important branch to study nonlinear partial differential equations. In this paper, the new modified ＇（G＇/G）-expansion method is described. With the aid of symbolic computation system-Maple, we choose Shar- ma-Tasso-Olver equation to illustrate the validity and advantages of this method. As a result, mmay new travelling wave solutions are obtained, such as u1 , u2, u4 and us. These new results can help us to understand the physical sense of the Sharma-Tasso-Olver equa- tion.