当我使用 tabulary 时，我无法为表格添加标题。这是我的代码，但我不明白我在哪里犯了错误...
\begin{tabulary}{\linewidth}{LLLL}
\caption{Summary of the technological likeness in the aeronautical industry for three AM's processes. Adapted from \cite{hopkinson2006rapid}}
\label{tab:AM_tech_likeness}
\hline
& SL & SLS & FDM \\
\hline
Materials: \\
Use acceptable production grade materials & Current acceptance is slow & Most versatile, can process both plastics and metals & Advantage of being able to use commercial grade plastics (ABS, PS, PC) \\
Processing \say{exotic} materials & \say{Exotic} materials are a possibility, but no metals. & Currently metals such A6, Inconel and aluminium, while in future titanium and others. & \say{Exotic} materials an issue. \\
\hline
\end{tabulary}
答案1
至于tabular，\caption则在 之前tabulary。它是周围table环境的一部分。