\begin{table} %t9
\caption{The wavelength integration intervals and the corresponding NLR contributions.
}\label{tab9}
\small%\centerline
{
\begin{tabular}{lll}
\hline\hline\noalign{\smallskip}
 Components    &Integration    &NLR flux$^a$\\
               &intervals (\AA)  &    \\
\hline
 H$\alpha$+[NII]      &6415--6716      &7.93\\
 H$\beta$-nar.        &4780--4950      &1.00\\
 H$\gamma$+[OIII]$\lambda$4363 &4268--4450      &1.04\\
 HeII+[ArIV]+  &4607--4783      &0.36\\
 $\rm [FeIII]~$ 4658 & &                 \\
\hline
\end{tabular}}
\smallskip
\hspace*{1.3cm}$^a$ In $10^{-12}$ erg cm$^{-2}$ s$^{-1}$.
\end{table}