\begin{table}%T7
\caption{\label{results}Summary of column densities, abundances, and D/H ratios in the observed molecules. }
\small%\centerline
{
\begin{tabular}{lcccccc} 
\hline
\hline
\noalign{\smallskip}
 & \multicolumn{3}{c}{clump~1}   &  \multicolumn{3}{c}{clump~3} \\
Molecule  & ~~~~~$N$ & ~~~~~$x$ & ~~~~~XD/XH &  ~~~~~$N$ & ~~~~~$x$ & ~~~~~XD/XH\\
           &    \small{(cm$^{-2}$)}  & \small{(cm$^{-3}$)}  & &  \small{(cm$^{-2}$)}  & \small{(cm$^{-3}$)}  & \\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
H$^{13}$CN   & (3.1~$\pm$~0.4)~$\times$~10$^{13}$ &  1.9~$\times$~10$^{-10}$&  &(2.5~$\pm$~0.3)~$\times$~10$^{13}$ &  1.9~$\times$~10$^{-10}$&   \\
DCN     &    (1.4~$\pm$~0.3)~$\times$~10$^{13}$ &  8.8~$\times$~10$^{-11}$&  0.7~$\pm$~0.2 \%&  (1.9~$\pm$~0.3)~$\times$~10$^{13}$ &  1.5~$\times$~10$^{-10}$&  1.1~$\pm$~0.2 \%  \\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
H$^{13}$CO$^+$ &  (2.0~$\pm$~1.0)~$\times$~10$^{13}$  &   1.3~$\times$~10$^{-10}$ & & (1.6~$\pm$~0.2)~$\times$~10$^{13}$ & 1.2~$\times$~10$^{-10}$ & \\
DCO$^+$    & $<$2.2~$\times$~10$^{11}$ &  $<$1.4~$\times$~10$^{-12}$ & $<$ 2~$\times$~10$^{-4}$  &  (6.9~$\pm$~1.1)~$\times$~10$^{11}$&   5.3~$\times$~10$^{-12}$ & (6.1~$\pm$~1.1) 10$^{-4}$\\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
H$_2$$^{13}$CO   & -- & -- & -- & (1.2~$\pm$~0.1)~$\times$~10$^{13}$ &  9.2~$\times$~10$^{-11}$&  \\
HDCO   & -- & -- & -- &  (4.8~$\pm$~0.8)~$\times$~10$^{12}$&  3.7~$\times$~10$^{-11}$ &0.6~$\pm$~0.1\% \\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
C$_2$D  & -- & -- & -- &   $<$2.5~$\times$~10$^{13}$ &    $<$2~$\times$~10$^{-10}$   & -- \\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
HNC  & -- & -- & -- & 1.1~$\times$~10$^{13}$ &  & \\
DNC  & -- & -- & -- & $<$1.5~$\times$~10$^{11}$ &  $<$1~$\times$~10$^{-12}$ & $<$1.4 \%\\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
CH$_2$DOH & $<$1.7~$\times$~10$^{14}$ & $<$1.1~$\times$~10$^{-9}$ & -- & $<$1.9~$\times$~10$^{14}$ &   $<$1.5~$\times$~10$^{-9}$ & --\\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
HDO & -- & -- & -- & $<$4.4~$\times$~10$^{13}$ &   $<$3.4~$\times$~10$^{-10}$ & --\\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
\end{tabular}}
\smallskip
We assumed that $T_{\rm rot}=35$~K for species detected with only one transition.
\end{table}