нижній внутрішній поясок у спідниці поршня
bearing rib
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
root rib
tip rib
rib
semi-rigid - rigid inflatable boat (RIB)
nose of rib
bottom
bottom mine
bottom of the hull
bottom plating
bottom sweep
double bottom
double bottom space
inner bottom
outer bottom
bottom carriage
bottom end of stroke
bottom escape
bottom gear
bottom gun carriage