\begin{table}%t1
\caption{\label{t:modelparam}Model component parameters.}\vspace{-1mm}
\vspace{-1mm}
\begin{tabular}{l c c c c c} 
\hline\hline \noalign{\smallskip}
Component & \Tex 	& \vlsr	& $FWHM$ & \multicolumn{2}{c}{$N_{\rm CH}$ ($10^{13}$ \psqcm)}	 \\
& (K)		& (\kms)	& (\kms) 	&  model I & model II    \\
\hline
Emission		& 100	& $-$8.3	& 3.0	& 20       & 20 \\
Absorption A	& 5.5	& $-$3.0 	& 5.0	& 6.8      & 6.6 \\
Absorption B	& 5.5	& $+$6.5	& 1.5	& 3.8      & 3.0 \\	
Absorption C    & 5.5	      & $+$8.0	 & 3.5	    & \ldots  & 2.1 \\
Absorption D	   & 5.5 & $+$0.0 & 3.0        &  \ldots  & 2.1 \\
\hline
\end{tabular}
\vspace{-5mm} 
\end{table}