\begin{table}%t1 \caption{\label{avelines}Observed parameters of the $^{13}$CO $J$~= 1--0 and CS~$J$~= 2$-$1~average emissions towards the regions shown in Fig.~\ref{espectrosAve}.} \par \small%\centering \par \begin{tabular}{ccccc} \hline\hline Emission & $T_{\rm mb}$ & $V_{\rm lsr}$ & $\Delta v$ & $ I $ \\ & (K) & (km~s$^{-1}$) & (km~s$^{-1}$) & (K km~s$^{-1}$) \\ \hline \multicolumn{5}{c}{{\it Region 1}} \\ $^{13}$CO $J$ = 1--0 & 3.80 $\pm$ 0.50 & 58.75 $\pm$ 1.05 & 5.05 $\pm$ 0.25 & 17.00 $\pm$ 3.00 \\ & 4.10 $\pm$ 0.50 & 55.25 $\pm$ 1.05 & 3.00 $\pm$ 0.15 & 15.00 $\pm$ 2.00 \\ CS $J$ = 2--1 & 0.46 $\pm$ 0.11 & 59.60 $\pm$ 1.10 & 4.00 $\pm$ 0.20 & 2.00 $\pm$ 0.30 \\ & 0.42 $\pm$ 0.15 & 55.80 $\pm$ 1.10 & 3.45 $\pm$ 0.15 & 1.90 $\pm$ 0.30 \\ \hline \multicolumn{5}{c}{{\it Region 2}} \\ $^{13}$CO $J$ = 1--0 & 4.10 $\pm$ 0.50 & 59.50 $\pm$ 0.50 & 6.75 $\pm$ 0.85 & 30.00 $\pm$ 3.80 \\ CS $J$ = 2--1 & 0.35 $\pm$ 0.05 & 59.90 $\pm$ 0.50 & 6.25 $\pm$ 0.95 & 2.30 $\pm$ 0.50 \\ \hline \multicolumn{5}{c}{{\it Region 3}} \\ $^{13}$CO$J$ = 1--0 & 6.40 $\pm$ 0.50 & 58.65 $\pm$ 0.25 & 6.10 $\pm$ 0.50 & 41.50 $\pm$ 3.50 \\ CS $J$ = 2--1 & 1.00 $\pm$ 0.10 & 59.25 $\pm$ 0.55 & 7.00 $\pm$ 1.00 & 7.70 $\pm$ 1.50 \\ \hline \end{tabular} \end{table}