normal cross section,regular cross section /SCIENCE,BUILDING/
[DE] Regelquerschnitt
[EN] normal cross section; regular cross section
[FR] coupe normale transversale; coupe transversale réglementaire; section normale
normal cross section,regular cross section
[DE] Regelquerschnitt
[EN] normal cross section; regular cross section
[FR] coupe normale transversale; coupe transversale réglementaire; section normale