полярний фронт
polar coordinate display
polar coordinates
polar plot
cartesian-to-polar
polar-to-cartesian
polar circle
polar coordinate system
polar curve of an aerofoil
polar distance
polar jet
polar latitude
shock polar
shock polar diagram
break the front
contact along the front
crack defenses/the front
disassemble the front
extended front
fill a hole (in the front)
forward front-line deployment
front
front armor
front line
front line logistic support
front organization
front panel
front plating
front portion
front section; warhead
front sight (fore / muzzle sight)
front sight post
front slope