Anh
gyration radius
radius of gyration
Đức
Traegheitshalbmesser
Traegheitsradius
Pháp
rayon de giration
Traegheitshalbmesser,Traegheitsradius /SCIENCE/
[DE] Traegheitshalbmesser; Traegheitsradius
[EN] gyration radius; radius of gyration
[FR] rayon de giration