коренева нервюра
clearing and isolating operation to root out enemy fighters
blade root
root cause
bearing rib
bottom rib of piston
cooling rib
ventilated rib
elevated rib
feed rib
guide rib (of a machine gun)
guide rib
intermediate rib
nose rib
rear rib
rib cap
rib flange
rib web
tip rib
rib
semi-rigid - rigid inflatable boat (RIB)
nose of rib