круглий / кільцевий шпангоут
frame cross member / frame cross-member
circular cross-section fuselage
circular section fuselage
crescent-shaped circular arc aerofoil section
circular arc aerofoil section
flat-convex circular arc aerofoil section
echoing cross-section; echoing cross section
circular
circular error probable (CEP)
circular trajectory
circular call sign
circular groove (of ammunition)
circular leaf spring
circular magazine drum
circular traffic
circular velocity
circular augmenting charge
circular vortex
semi-circular deviation
circular scan
circular scanning mode
circular sweep
circular time base
center point method circular area
bearing frame
containerized shipping, storage, and launch frame
fixed frame metal detector
I-beam frame
pack frame
still-frame image
transverse frame
bent frame member