\begin{figure}[h!]
\centering
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                        \includegraphics[width=1.05\textwidth ,height=80]{A3830}
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                     \includegraphics[width=1.17\textwidth ,height=80]{A3831}
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                     \includegraphics[width=1.05\textwidth ,height=80]{A3832}
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                     \includegraphics[width=1.05\textwidth ,height=80]{A3833}
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                     \includegraphics[width=1.05\textwidth ,height=80]{A3834}
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                      \includegraphics[width=1.05\textwidth ,height=80]{A3835}
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                        \includegraphics[width=1.05\textwidth ,height=80]{A3836}
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                     \includegraphics[width=1.06\textwidth ,height=80]{A3837}
                                   \renewcommand{\captionfont}{\footnotesize}
                                   \vspace*{-0.99cm}
                                   \caption{$ M = 2^{0} $}
                                   \label{fi3.8.31}
                     \end{subfigure}
\vspace*{-0.1mm} 
                     \begin{subfigure}[b]{0.16\textwidth}
                     \includegraphics[width=1.05\textwidth ,height=80]{A3838}
                                                        \renewcommand{\captionfont}{\footnotesize}
                                                        \vspace*{-0.99cm}
                                                        \caption{$ M = 2^{1} $} 
                                                        \label{fi3.8.32}
                     \end{subfigure}
\vspace*{-0.1mm}  
                     \begin{subfigure}[b]{0.16\textwidth}
                     \includegraphics[width=1.05\textwidth ,height=80]{A3839}
                                                        \renewcommand{\captionfont}{\footnotesize}
                                                        \vspace*{-0.99cm}
                                                        \caption{$ M = 2^{2} $} 
                                                        \label{fi3.8.33}
                     \end{subfigure}
\vspace*{-0.1mm}            
                     \begin{subfigure}[b]{0.16\textwidth}
                     \includegraphics[width=1.05\textwidth ,height=80]{A3840}
                                                        \renewcommand{\captionfont}{\footnotesize}
                                                        \vspace*{-0.99cm}
                                                        \caption{$ M = 2^{4} $} 
                                                        \label{fi3.8.34}
                     \end{subfigure}
\vspace*{-0.1mm} 
                      \begin{subfigure}[b]{0.16\textwidth}
                      \includegraphics[width=1.05\textwidth ,height=80]{A3841}
                                                        \renewcommand{\captionfont}{\footnotesize}
                                                        \vspace*{-0.99cm}
                                                        \caption{$ M = 2^{5} $} 
                                                        \label{fi3.8.35}
                      \end{subfigure}
\vspace*{-0.1mm}  
                        \begin{subfigure}[b]{0.16\textwidth}
                        \includegraphics[width=1.05\textwidth ,height=80]{A3842}
                                                        \renewcommand{\captionfont}{\footnotesize}
                                                        \vspace*{-0.99cm}
                                                        \caption{$ M = 2^{6} $} 
                                                        \label{fi3.8.36}                        
                        \end{subfigure} 
                                                                   
\renewcommand{\captionfont}{\footnotesize}
\vspace*{-0.3cm}
\caption [نمودار مورفولوژیکی الگوهای دی‌اِل‌اِی معمولی، دی‌اِل‌اِی صلیبی و دی‌اِل‌اِی]{نمودار مورفولوژیکی الگوهای دی‌اِل‌اِی معمولی، دی‌اِل‌اِی صلیبی و دی‌اِل‌اِی ضربدری برحسب تغییرات $ r $ و $ M $ برای $ 25000 $ ذره.}
\label{fi3.8}
\end{figure}