nitrogen fixation /SCIENCE,INDUSTRY-CHEM/
[DE] Stickstoffixierung
[EN] nitrogen fixation
[FR] fixation de l' azote
nitrogen fixation /INDUSTRY-CHEM/
[DE] Stickstoffbindung
[EN] nitrogen fixation
[FR] fixation de l' azote
fixation,nitrogen fixation /SCIENCE/
[DE] Stickstoff-Fixierung; Stickstoffbindung
[EN] fixation; nitrogen fixation
[FR] fixation de l' azote