答案1
% arara: pdflatex
\documentclass{article}
\usepackage{array}
\begin{document}
\noindent
where for (1)--(4)
\begin{tabbing}
\hspace{2cm} \= \hspace{3cm} \kill
$P(t),Q(t)$ \> current time measure.....\\
$V(t),F(t)$ \> current time measure.....\\
\end{tabbing}
or alternatively\par\noindent
\begin{tabular}{@{}>{$}l<{$}l}
P(t),Q(t) & current time measure.....\\
V(t),F(t) & current time measure.....\\
\end{tabular}
\end{document}
nomencl
或者您可以使用类似或的一些包glossaries
来做类似的事情。