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Geophysics. Cosmic physics
3
Meteorology. Climatology
3
QC801-809
3
QC851-999
3
1-second intermagnet magnetometer
1
absolute observations
1
compensation of time changes of the field
1
declination
1
geomagnetic field gradient
1
geomagnetic observatory
1
inclination
1
increase of accuracy of geomagnetic field measurements
1
lemi-025 variometer
1
lemi-025 variometer noise
1
the technique of synchronous measurement
1
time-scaled geomagnetic field induction
1
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