\begin{table}%t5
\caption{Results of dust continuum single-component fit,
with $\beta$ fixed at $1.5$, and $\Omega$ is $1.5\times 10^{-7}$~sr.
% in erg s$^{-1}$ cm$^{-2}$ sr$^{-1}$.
}\label{iso-dust}
%\centerline
 {\small
\begin{tabular}{lccccccc}
%\noalign{\smallskip} 
\hline \hline
  Position &$\tau_{\rm v}$&$A_{\rm v}$(ISO)$\NOTE{a}$&$N$(H$_2$)&Mass&$T_{\rm dust}$&$I_\RM{IR}$$\NOTE{b}$&$L$\\%&$X$(C$^{18}$O)&X(\CI)\\
 & &&[$10^{22}$~\cmsq]&[\msol{}($D$/1.7~kpc)$^2$]&[K]&[erg~s$^{-1}$~cm$^{-2}$~sr$^{-1}$]&[$10^3~L_\odot$($D$/1.7~kpc)$^2$]\\%&[$10^{-7}$]&[$10^{-5}$]\\
%\noalign{\smallskip} 
\hline %\noalign{\smallskip}
DR21 E{} & 20&$21.2\pm1.9$& 2.1 &148 &$41.6\pm0.6$& $0.55 \pm0.05$ & 7 \\%&$1.8\HIDE{2.6/2.57/1.38/1.24}$     & 1.5\\
DR21 C{} &112&$121 \pm11$&12.1 &850 &$42.5\pm0.7$& $3.4  \pm0.3 $  & 45\\%&$1.7\HIDE{2.3/2.27/1.20/1.08}$     & 0.56\\
DR21 W{} & 34&$36.9\pm3.5$&3.69 &259 &$30.7\pm0.4$& $0.18\pm0.02$  & 2 \\%&$2.4\HIDE{2.8/2.79/1.73/1.57}$     & 1.03\\
DR21 (OH)&238&$259\pm43$&25.8 &1814&$31.2\pm0.8$& $1.3 \pm0.2 $    & 17\\%&$0.59\HIDE{0.65/0.655/0.612/0.558}$& 0.20\\
DR21 FIR1& 45&$48.4\pm4.3$&4.84 & 340&$33.3\pm0.5$& $0.37\pm0.03$  & 5 \\ 
\hline
\end{tabular}}
\par
\medskip
$\NOTE{a}$
The extinction and the opacity are linked through $A_\RM{v}=2.5 \tau_\RM{v}\cdot\log_{10}e\approx 1.085\cdot\tau_\RM{v}$.
$\NOTE{b}$
The total infrared flux is calculated from $I_\RM{IR}=\int F_\lambda \RM{d}\lambda$.
\end{table}