我应该如何修改.tex 和 .cls 文件才能达到我想要的效果？
\newcommand{\NMU@denotation@name}{symbol comparison table}
\newenvironment{denotation}[1][2.5cm]{
\chapter{\NMU@denotation@name} % no tocline
\addcontentsline{eoc}{chapter}{List of Denotations}
\noindent\begin{list}{}%
{\vskip-30bp\zihao{-4}
\renewcommand\makelabel[1]{##1\hfil}
\setlength{\labelwidth}{#1}
\setlength{\labelsep}{0.5cm}
\setlength{\itemindent}{0cm}
\setlength{\leftmargin}{\labelwidth+\labelsep}
\setlength{\rightmargin}{0cm}
\setlength{\parsep}{0cm}
\setlength{\itemsep}{0cm}
\setlength{\listparindent}{0cm}
\setlength{\topsep}{0pt}
\setlength{\columnseprule}{0.4pt}
}}
{\end{list}}