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{|style="height:140px; background:#efefef"|align="center" valign="top"| {{Icon|file=biogas_as_source_of_energy_icon.jpg|alt=Biogas as source of energy|width=91|link=Biogas as source of energy}} <br> [[Biogas as source of energy|Biogas for energy]]|}
{|style="height:140px; background:#efefef"
|align="center" valign="top"| {{Icon|file=Icon_irrigation.png|alt=Irrigation (fr)|width=91|link=Irrigation (fr)}} <br> [[Irrigation (fr) ]]