National Geomagnetism Program
AQShning Milliy geomagnetizm dasturi (National Geomagnetism Program) Yerning magnit maydonini (Earth's magnetic field) kuzatib boradi.
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 | geophysics-related haqidagi uşbu maqola çaladir. Siz uni boyitib, ZiyoSferaga yordam berişingiz mumkin. |