line of same declination的意思|示意
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等偏线
line of same declination的网络常见释义
等偏线 ... 定位线 line of position 等偏线 line of same declination; isogonic lines 等倾线 line of same dip; isoclinic lines ...
line of same declination相关短语
1、 declination line of same 等偏线