agonic line
agonic line
agonic line
n.(名词)
    An imaginary line on the earth's surface connecting points where the magnetic declination is zero.
    无偏线,零磁偏线:一条在地球表面上连接磁偏为零的点的假想线
agonic line
agonic line
n.(名词)
    An imaginary line on the earth's surface connecting points where the magnetic declination is zero.
    无偏线,零磁偏线:一条在地球表面上连接磁偏为零的点的假想线
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