\begin{table}%t2
\caption{\label{tab2}The mass and the envelope mass of anomalous hot subdwarfs
for mass ratios $q_{\rm i}=$1.1, 1.5.}  
%%\centerline

{\small
\begin{tabular}{lcc}
\hline \hline
 Type  &  $M_{\rm f}$  &  $M_{\rm env}$ \\ 
 & ($M_{\odot}$) & ($M_{\odot}$) \\%& ($M_{\odot}$)\\
\hline
   conservative case:  \\
sdB   &  0.72--1.06  &  0.07--0.16 \\  % &   2.24--3.55 \\
sdOB  &  0.98--1.23  &  0.11--0.19 \\  %&   3.98--4.47 \\
\hline
   nonconservative case:  \\
sdB   &  0.83--1.13  &  0.10--0.16 \\  %&   2.24--3.55 \\
sdOB  &  0.97--1.17  &  0.11--0.16 \\  
\hline
\end{tabular}}
\par
\medskip
$M_{\rm f} =$ the mass of hot subdwarfs; $M_{\rm env} =$ the envelope mass of hot subdwarfs. 
\end{table}