Earth's magnetic field
геомагнітне поле; магнітне поле Землі
геомагнітне поле; магнітне поле Землі
magnetic variation / magnetic declination
magnetic bubble memory / magnetic bubble store
scorched earth tactics (scorch-earth tactics)
field officer (field-grade officer / senior officer)
air support field pack, field pack air support, airborne / para (air support) / Pathfinder Bergen