\begin{table}%t3
%\centering
\par
   \caption{Observed lines.\label{intintens}}
   \begin{tabular}{lll ccc ccc}
%
   \hline\hline
 & & &&\multicolumn{2}{c}{\object{IRAS~16594-4656}}&&\multicolumn{2}{c}{\object{IRAS~17150--3224}} \\
\cline{5-6}\cline{8-9}
Molecule &Transition&Frequency&& $T_{{\rm mb}}$ & $\int T_{\rm mb}{{\rm d}v}$ && $T_{{\rm mb}}$ & $\int T_{\rm mb}{{\rm d}v}$\\
 & & GHz && K & K~km~s$^{-1}$ && K & K~km~s$^{-1}$ \\
    \hline
C$_3$S & $J$~=~15--14 & 86.708 && $<$0.01 & $<$0.03 && -- & -- \\
SiO & $J$~=~2--1 & 86.847 && $<$0.01 & $<$0.03 && -- & -- \\
HN$^{13}$C & $J$~=~1--0 & 87.091 && $<$0.01 & $<$0.03 && -- & -- \\
C$_4$H & $^2\Pi_{3/2}$, 19/2--17/2 & 87.372 && $<$0.01 & $<$0.03 && -- & -- \\
C$_2$H & $N$~=~1--0 & 87.329 && $<$0.01 & $<$0.03 && -- & -- \\
HCN & $J$~=~1--0 & 88.632 && {\bf\phantom{$<$}0.02} & {\bf\phantom{$<$}0.47} && {\bf\phantom{$<$}0.02} & {\bf\phantom{$<$}0.54 }\\
C$_3$N & $N$~=~9--8, $J$~=~19/2--17/2 & 89.046 && $<$0.01 & $<$0.05 && -- & -- \\
C$_3$N & $N$~=~9--8, $J$~=~17/2--15/2 & 89.064 && $<$0.01 & $<$0.05 && -- & -- \\
HCO$^+$ & $J$~=~1--0 & 89.189 && $<$0.01 & $<$0.05 && -- & -- \\
HC$^{13}$CCN & $J$~=~10--9 & 90.593 && $<$0.01 & $<$0.04 && -- & -- \\
HCC$^{13}$CN & $J$~=~10--9 & 90.602 && $<$0.01 & $<$0.04 && -- & -- \\
HNC & $J$~=~1--0 & 90.664 && $<$0.01 & $<$0.04 && -- & -- \\
SiS & $J$~=~5--4 & 90.772 && $<$0.01 & $<$0.04 && -- & -- \\
HC$_3$N & $J$~=~10--9 & 90.979 && $<$0.01 & $<$0.04 && -- & -- \\
CH$_3$CN & 5(1)--4(1) & 91.985 && $<$0.01 & $<$0.05 && -- & -- \\
HC$^{13}$CCN & $J$~=~12--11 & 108.711 && $<$0.01 & $<$0.06 && -- & -- \\
HCC$^{13}$CN & $J$~=~12--11 & 108.721 && $<$0.01 & $<$0.06 && -- & -- \\
$^{13}$CN & $N$~=~1--0 & 108.780 && $<$0.01 & $<$0.06 && -- & -- \\
C$_3$N & $N$~=~11--10, $J$~=~23/2--21/2 & 108.834 && $<$0.01 & $<$0.06 && -- & -- \\
C$_3$N & $N$~=~11--10, $J$~=~21/2--19/2 & 108.853 && $<$0.01 & $<$0.06 && -- & -- \\
SiS & $J$~=~6--5 & 108.924 && $<$0.01 & $<$0.06 && -- & -- \\
HC$_3$N & $J$~=~12--11 & 109.174 && $<$0.01 & $<$0.06 && -- & -- \\
$^{13}$CO & $J$~=~1--0 & 110.201 && {\bf\phantom{$<$}0.04} & {\bf\phantom{$<$}0.06} && {\bf\phantom{$<$}0.04} & {\bf\phantom{$<$}0.75} \\
CH$_3$CN & 6(1)--5(1) & 110.381 && $<$0.01 & $<$0.11 && $<$0.01 & $<$0.09 \\
C$_4$H & $^2\Pi_{3/2}$ 23/2--21/2 & 113.266 && $<$0.01 & $<$0.09 && $<$0.01 & $<$0.06 \\
C$_2$S & 8(7)--9(8) & 113.410 && $<$0.01 & $<$0.09 && $<$0.01 & $<$0.06 \\
CN & $N$~=~1--0 & 113.491 && {\bf\phantom{$<$}0.05} & {\bf\phantom{$<$}3.63} && $<$0.01 & $<$0.06 \\
C$_4$H & $^2\Pi_{3/2}$ 21/2--19/2 & 115.217 && $<$0.07 & $<$0.76 && $<$0.04 & $<$0.45 \\
CO & $J$~=~1--0 & 115.271 && {\bf\phantom{$<$}0.61} & {\bf\phantom{$<$}1.78} && {\bf\phantom{$<$}0.25} & {\bf\phantom{$<$}5.05} \\
SiC$_2$ & $5_{0,5}$--$4_{0,4}$ & 115.382 && $<$0.07 & $<$0.76 && $<$0.04 & $<$0.45 \\
SiO & $J$~=~3--2 & 130.269 && $<$0.01 & $<$0.06 && -- & -- \\
H$_2$CO & $2_{1,2}$--$1_{1,1}$ & 140.840 && $<$0.01 & $<$0.07 && -- & -- \\
SiC$_2$ & $6_{2,5}$--$5_{2,4}$ & 140.920 && $<$0.01 & $<$0.07 && -- & -- \\
H$^{13}$CCCN & $J$~=~16--15 & 141.062 && $<$0.01 & $<$0.07 && -- & -- \\
CS & $J$~=~3--2 & 146.969 && $<$0.01 & $<$0.04 && -- & -- \\
CH$_3$CN & 8(0)--7(0) & 147.175 && $<$0.01 & $<$0.04 && -- & -- \\
$^{13}$CO & $J$~=~2--1 & 220.399 && {\bf\phantom{$<$}0.10} & {\bf\phantom{$<$}1.34} && {\bf\phantom{$<$}0.13} & {\bf\phantom{$<$}2.91} \\
CH$_3$CN & 12(0)--11(0) & 220.747 && $<$0.01 & $<$0.16 && $<$0.01 & $<$0.17 \\
CN & $N$~=~2--1 & 226.875 && {\bf\phantom{$<$}0.11} & {\bf\phantom{$<$}9.91} && $<$0.01 & $<$0.10 \\
CO & $J$~=~2--1 & 230.538 && {\bf\phantom{$<$}1.75} & {\bf\phantom{\~}32.60} && {\bf\phantom{$<$}0.65} & {\bf\phantom{\~}12.84} \\
CO$^+$ & $J$~=~2--1 & 235.790 && $<$0.01 & $<$0.12 && -- & -- \\
SiS & $J$~=~13--12 & 235.961 && $<$0.01 & $<$0.12 && -- & -- \\
CH$_3$CN & 13(0)--12(0) & 239.138 && $<$0.01 & $<$0.16 && -- & -- \\
CH$_3$C$_2$H & 14(0)--13(0) & 239.252 && $<$0.01 & $<$0.16 && -- & -- \\
C$_3$H$_2$ & $4_{4,1}$--$3_{3,0}$ & 265.759 && $<$0.02 & $<$0.36 && -- & -- \\
HCN & $J$~=~3--2 & 265.886 && {\bf\phantom{$<$}0.11} & {\bf\phantom{$<$}2.85} && -- & -- \\
H$^{13}$CN & $J$~=~4--3 & 345.340 && $<$0.04 & $<$0.80 && $<$0.06 & $<$1.28 \\
HC$_3$N & $J$~=~38--37 & 345.610 && $<$0.04 & $<$0.80 && $<$0.06 & $<$1.28 \\
CO & $J$~=~3--2 & 345.796 && {\bf\phantom{$<$}2.05} & {\bf\phantom{\~}41.20} && {\bf\phantom{$<$}0.78} & {\bf\phantom{\~}18.19} \\
%
  \hline
%
   \end{tabular}
\end{table}