parabolic channel parabolic characteristic parabolic detection parabolic dish parabolic girder parabolic load parabolic mirror parabolic partial differential equation parabolic reflector parabolic-reflector antenna paraboloid calotte paraboloid of revolution paracentric paracentrical parachor parachrosis parachute parachute beacon parachute braking parachute canopy |
parabolic channel канал с параболично напречно сечение Търсената дума е намерена |