кут між вертикальною лінією координатної сітки та напрямком на магнітну північ
grid magnetic angle
magnetic variation / magnetic declination
magnetic bubble memory / magnetic bubble store
grid magnetic azimuth adjustment
grid zone / grid-zone
grid zone designation / Grid Zone Designator
JAN grid / Joint Army-Navy grid
bearing grid angle
grid bearing angle
grid course angle
grid-north angle
blind angle / dead angle
magnetic anomaly detection (MAD) gear
magnetic azimuth
magnetic bearing
magnetic declination
magnetic intelligence
magnetic mine
magnetic mine hunting
magnetic needle
magnetic north (MN)
magnetic target sensor
magnetic focus
artificial magnetic anomalies
dip-needle magnetic mine
magnetic
magnetic inspection
magnetic chip detector
magnetic detection
runway magnetic azimuth
runway magnetic bearing
Earth's magnetic field