helicopter carrier helicopter screw helictite heliocentric heliocentric coordinates heliocentric-type reducer heliograph heliographic latitude heliographic paper heliography helion heliophysics helioscope heliotrope helium helium age helium bubble chamber helium-cooled parametric amplifier helium-neon laser helix |
helicopter carrier кораб. вертолетоносач Търсената дума е намерена |