Qual è il terzo riquadro di destra? Il trattino è la piccola barra verticale?
In attesa di capirci meglio vedi se questo può andar bene:
`
\begin{tabularx}{\textwidth}{cX}
\toprule
\textbf{\texttt{CHARACTERISTICS}} & \multicolumn{1}{c}{\textbf{\texttt{DESCRIPTIONS}}}\\
\midrule
Efficiency & $10\%$ (milled version) or $13,4\%$ (laser cut), each with $10\%$ transparency\\
Form & Square\\
Usual Size & \SI{10}{cm^{2}} x \SI{10}{cm^{2}}; \SI{12,5}{cm^{2}} x \SI{12,5}{cm^{2}} \\
Thickness & \SI{0,30}{mm}\\
Appearance & The EFG process produces long pulled crystal that can just be seen if you look closely. The cell surfaces are slightly uneven \\
Colour & Depends upon type, such as polycrystalline cells or black\\
\bottomrule
\end{tabularx}
`
Servono i pacchetti tabularx, siunitx, booktabs.
Ciao
Ivan