Anh
radius of inertia
radius of gyration
Đức
Trägheitshalbmesser
Trägheitsradius
Pháp
rayon d'inertie
radius of gyration,radius of inertia /TECH/
[DE] Trägheitshalbmesser; Trägheitsradius
[EN] radius of gyration; radius of inertia
[FR] rayon d' inertie