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\begin{document}
\mainmatter
\subsection{Tensiométrie}
(Figure \ref{willel})
\begin{figure}[ht]
\centering
\includegraphics[scale=0.48]{images/willelmy}
\caption{Principe de détermination de CMCs par plaque selon la méthode de Wilhelmy}
\label{willel}
\end{figure}
\paragraph*{}
Figure \ref{tensioss}
\begin{figure}
\begin{center}
\subfloat[blabla]{
\begin{tikzpicture}[scale=0.75]
Ajouter
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avant le deuxième environnementfigure
:Figure \ref{tensioss} \stepcounter{figure}