18. (12 points)\\
\includegraphics[max width=\textwidth, alt={}, center]{cd808fdb-5cf6-4ceb-9628-959ae73784cb-3_167_1781_1484_186}\\
\includegraphics[max width=\textwidth, alt={}, center]{cd808fdb-5cf6-4ceb-9628-959ae73784cb-3_131_1269_1609_60}\\
\includegraphics[max width=\textwidth, alt={}]{cd808fdb-5cf6-4ceb-9628-959ae73784cb-3_133_1806_1680_172}

\begin{center}
\begin{tabular}{|l|l|l|}
\hline
Definition & \includegraphics[max width=\textwidth, alt={}]{cd808fdb-5cf6-4ceb-9628-959ae73784cb-3_77_340_1884_768} & Weight $\geqslant 50 \mathrm {~kg}$ \\
\hline
Traditional Method &  &  \\
\hline
New Method &  &  \\
\hline
\end{tabular}
\end{center}

\includegraphics[max width=\textwidth, alt={}]{cd808fdb-5cf6-4c