\begin{table}%t1
\caption{Transitions observed with the IRAM-30 m telescope and the Plateau de
 Bure interferometer.}
\label{30mobs}
%\centerline
{
\begin{tabular}{cccccc}
\hline \hline
 Molecular  &  Rest freq. & HPBW (30 m)   & Band / Resolution (30 m) & HPBW
(PdBI) & Band / Resolution (PdBI) \\
  transition    &    (GHz)    & (\asec )  & (MHz) & (\asec ) & (MHz) \\
\hline
\CII\ (1--0) &  109.782  & 23   &   70/0.078 ($\sim$$0.2$ \kms )  & 2.3 $\times$ 1.94 & 16/0.156 ($\sim$$0.4$ \kms ) \\ 
\CIII\ (1--0) & 112.359  &  22   &   70/0.078 ($\sim$$0.2$ \kms) & 1.95 $\times$ 1.45 & 17/0.156 ($\sim$$0.4$ \kms )
\\ 
\CIII\ (2--1) & 224.714   &  11  &   70/0.078 ($\sim$$0.1$ \kms ) & 0.94 $\times$ 0.75 & 25/0.312 ($\sim$$0.4$ \kms )\\ 
\ace\ (6--5) & 102.547$(^*)$ &  24  &   70/0.078 ($\sim$$0.2$ \kms ) & -- & -- \\ 
\ace\ (8--7) & 136.728$(^*)$ &  18  &   70/0.078 ($\sim$$0.2$ \kms )& -- & -- \\
\ace\ (13--12) & 222.166$(^*)$ &  11  &   140/0.078 ($\sim$$0.1$ \kms ) & 0.94 $\times$ 0.76 & 33/0.312 ($\sim$$0.4$ \kms ) \\ \hline
\end{tabular}}
\medskip
$(^*)$ Rest frequency of the $K=0$ transition.
\end{table}