% Dans le préambule
% -----------------
\usepackage{pstricks-add}
% -----------------

\begin{pspicture}(0,-1)(5,1)
\psset{yAxis=false,decimalSeparator={,}}
\psset{ticksize=0 0.5,subticksize=0.5}
\psaxes[Ox=34.7, Dx=0.1, dx=2, subticks=10]
                                (0,0)(0,0)(4,0)
\pnode(1,0){A}   \psdots(A) \uput[-90](A){$A$}
\pnode(3.2,0){B} \psdots(B) \uput[-90](B){$B$}
\end{pspicture}