Hauptstrahl /SCIENCE/
[DE] Hauptstrahl
[EN] principal ray
[FR] rayon principal
Hauptstrahl /ENG-ELECTRICAL/
[DE] Hauptstrahl
[EN] main beam
[FR] faisceau du lobe principal; faisceau principal
Hauptstrahl,Zentralstrahl /SCIENCE/
[DE] Hauptstrahl; Zentralstrahl
[EN] central ray
[FR] rayon central