Anh
radius of bend
radius of curvature
Đức
Kurvenradius
Bogenradius
Krümmungsradius
Pháp
rayon de courbure
Bogenradius,Krümmungsradius,Kurvenradius /SCIENCE,TECH/
[DE] Bogenradius; Krümmungsradius; Kurvenradius
[EN] radius of curvature
[FR] rayon de courbure