\begin{table}%t3
    \caption{\label{tab:result}Line intensities and molecular column densities.}
%\centerline
 {\small      \begin{tabular}{l|c@{\hspace{1.5mm}}c@{\hspace{1.5mm}}c@{\hspace{3mm}}c@{\hspace{1.5mm}}c|c@{\hspace{1.5mm}}c@{\hspace{1.5mm}}cc@{\hspace{1mm}}|c}
\hline \hline %&&&&&&&&&&\\[-1mm]
 & \multicolumn{5}{c|}{o-\NHHD}   & \multicolumn{4}{c|}{o-\fNHHD}  & \\ 
 Source  &  $T_{\rm mb} \pm \sigma~^a$  & $\delta V$ & $\tau$ & $T_{\rm ex}$ &  $N^b$  &  $T_{\rm mb} \pm \sigma$~$^a$  &  $I$ & $\delta V$ &  $N^b$ &  ${\left[\NHHD\right]} \over {\left[\fNHHD\right]}$ \\
& K  & km~s$^{-1}$ & & K&  10$^{14}$~cm$^{-2}$ & mK  & mK km~s$^{-1}$ &km~s$^{-1}$ &10$^{11}$ cm$^{-2}$ &  \\ 
\hline %&&&&&&&&&&\\[-1mm]
Barnard1b & $2.5 \pm 0.047$  & 0.79 & $5.24 \pm 0.14$ &$6.0 \pm 0.5$ & $4.7 \pm 0.5$  & $42 \pm 9$ 
& $30 \pm 4$ & 0.67 & $10 \pm 2.7$ & $\rm470^{+170}_{-100}$ \\[1mm] 
N1333-IRAS4A & $1.0 \pm 0.018$  & 1.38 & $1.39 \pm 0.10$ & $5.0 \pm 0.5$ & $2.7 \pm 0.6$ & $\pm 10$  & $<$30  & ... & $<$10  & $>$270 \\
N1333-DCO$^+$ & $1.3 \pm 0.015$  & 1.15 & $1.71 \pm 0.05$ & $ 5.3 \pm 0.5$ & $2.4 \pm 0.4$ & $26 \pm 8$  & $14 \pm 3$ & 0.52 & $6.7 \pm 2.5 $  &  $\rm360^{+260}_{-110}$ \\[1mm]
LDN1544 & $2.3 \pm 0.016$  & 0.47 & $7.05 \pm 0.05 $ & $5.3 \pm 0.5$ & $4.1 \pm 0.5$ & $\pm$7
& $<$10  & ... & $<$5.2 & $>$700 \\ 
L134N(S) & $2.2 \pm 0.033$  & 0.42 & $4.75 \pm 0.10$ & $5.5 \pm 0.5$ & $2.4 \pm 0.4 $ & $24 \pm 7 $
& $10 \pm 2$ & 0.40 & $4.5 \pm 2.0$ & $\rm530^{+570}_{-180}$ \\[1mm] 
L1689N & $5.3 \pm 0.030$  & 0.53 & $6.98 \pm 0.02$ & $8.5 \pm 0.5$ & $3.4 \pm 0.5$ & 
$65 \pm 17$  & $26 \pm 6$ & 0.37 & $4.2 \pm 1.5$ & $\rm 810^{+600}_{-250}$  \\[1mm]
\hline
\end{tabular}}
\medskip
$^a$ $\sigma$ is the rms computed for the original spectral resolution of 40~kHz~=~0.136 \kms; $^b$~computed at LTE with the same $T_{\rm ex}$  for o-\NHHD \ and o-\fNHHD . $T_{\rm ex}$ is derived from the HFS fit of the o-\NHHD \ profile.
\end{table}