\documentclass{ctuthesis}
\ctusetup{ mainlanguage = english }
\ctuprocess
\usepackage{tabularx, array, booktabs}
\begin{document}

\appendix

\chapter*{List of Notation}

\noindent
\begin{tabularx}{\linewidth}
  { l >{\raggedright\arraybackslash}X }
\bfseries Symbol & \bfseries Meaning \\\Midrule
$\alpha$ & The angle of attack \\
$\mathbb{R}$ & The real numbers \\
\end{tabularx}

\end{document}