begin{enumerate}
    setlength{itemsep}{0pt}
    item bi-axial etc. etc.
    item uni-axial etc. etc.
    item uni-axial etc. etc.
    item uni-axial etc.
end{enumerate}
%

documentclass{article}
usepackage{enumitem}
setlist{nolistsep}
begin{document}
Something.
begin{enumerate}
item One
item Two
end{enumerate}
Something else.
end{document}