\begin{table}%t2
\caption{\label{linpara}Integrated intensities, $v_{\rm LSR}$ and $\Delta v$ of the observed lines.} %\centerline
 {\small \begin{tabular}{lccc}
\hline\hline\\[-3mm]
Position & $ \int T _{\rm mb}~{\rm d}v$ & $V\rm _{LSR}$ & $\Delta v$  \\ 
&  [Kkm~s$^{-1}$] & [km~s$^{-1}$] & [km~s$^{-1}$] \\
\hline\noalign{\smallskip}
\multicolumn{4}{c}{$\rm ^{12}CO~13{-}12$} \\
FIR~5 & $120\pm 10$ & $12.23\pm 0.3$ & $3.34\pm 0.5$\\
IRS~3 & $109\pm 10$ & $12.75\pm 0.3$ & $3.92\pm 0.5$\\
\# 1  & $127\pm 10$ & $13.50\pm 0.3$ & $4.51\pm 0.5$\\
\# 2  & $57\pm 10$  & $13.17\pm 0.3$ & $3.54\pm 0.5$ \\
IRS~2 & $<$30       & -- & -- \\
\hline\noalign{\smallskip}
\multicolumn{4}{c}{$\rm ^{12}CO~7{-}6$} \\
%\hline
IRS~3 & $229\pm 10$ & $11.5\pm 0.2$ & $ 4.5\pm 0.5$ \\
\hline\noalign{\smallskip}
\multicolumn{4}{c}{$\rm ^{12}CO~6{-}5$} \\
%\hline
FIR~5 & $288\pm 10$ & $12.0\pm 0.15$ & $7.5\pm 0.5$\\
IRS~3 & $289\pm 10$ & $11.9\pm 0.15$ & $7.2\pm 0.5$\\
\# 1  & $279\pm 10$ & $11.9\pm 0.15$ & $7.0\pm 0.5$\\
\# 2  & $265\pm 10$ & $11.9\pm 0.15$ & $7.2\pm 0.5$\\
IRS~2 & $235\pm 10$ & $11.8\pm 0.15$ & $7.5\pm 0.5$\\
\hline\noalign{\smallskip}
\multicolumn{4}{c}{$\rm ^{13}CO~6{-}5$} \\
%\hline
FIR~5 & $159\pm 5$ & $10.9\pm 0.15$ & $2.8\pm 0.5$  \\
IRS~3 & $157\pm 5$ & $10.9\pm 0.15$ & $2.7\pm 0.5$\\
\# 1  & $149\pm 5$ & $10.8\pm 0.15$ & $2.6\pm 0.5$\\
\# 2  & $138\pm 5$ & $10.7\pm 0.15$ & $2.5\pm 0.5$\\
IRS~2 & $106\pm 5$ & $10.5\pm 0.15$ & $2.3\pm 0.5$\\
\hline\noalign{\smallskip}
\multicolumn{4}{c}{$\rm ^{12}CO~4{-}3$} \\
%\hline
IRS~3 & $257.8\pm 10$ & $11.5\pm 0.2$ & $ 11.8\pm 0.3$ \\
\hline\noalign{\smallskip}
\multicolumn{4}{c}{$\rm ^{12}CO~3{-}2$} \\
%\hline
FIR~5 & $213\pm 10$ & $11.9\pm 0.15$ & $10.2\pm 0.2$\\
IRS~3 & $202\pm 10$ & $11.9\pm 0.15$ & $11.3\pm 0.2$\\
\# 1  & $186\pm 10$ & $11.6\pm 0.15$ & $10.7\pm 0.2$\\
\# 2  & $171\pm 10$ & $11.0\pm 0.15$ & $8.55\pm 0.2$\\
IRS~2 & $155\pm 10$ & $10.7\pm 0.15$ & $6.52\pm 0.2$\\
\hline\noalign{\smallskip}
\multicolumn{4}{c}{$\rm ^{13}CO~3{-}2$} \\
%\hline
FIR~5 & $146\pm 5$ & $10.9\pm 0.1$ & $3.36\pm 0.2$\\
IRS~3 & $144\pm 5$ & $10.8\pm 0.1$ & $3.42\pm 0.2$\\
\# 1  & $136\pm 5$ & $10.8\pm 0.1$ & $3.34\pm 0.2$\\
\# 2  & $127\pm 5$ & $10.8\pm 0.1$ & $3.24\pm 0.2$\\
IRS~2 & $109\pm 5$ & $10.7\pm 0.1$ & $2.93\pm 0.2$\\
\hline 
\end{tabular}}
\medskip
Due to the complex line shapes, especially from the lower-$J$ $^{12}$CO lines, the $v_{\rm LSR}$ and $\Delta v$ have been determined by using the first and second moment of the spectra, respectively. 
\end{table}