| 释义 |
DEFINITIVE EXAMPLES 权威例句〔agonic line〕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美国传统〔declination〕Magnetic declination.磁偏角，磁偏差美国传统〔isogonic line〕A line on a map connecting points of equal magnetic declination.等磁偏线：地图上连结具有相同磁偏角各点的一条联线美国传统〔variation〕Magnetic declination.磁偏角美国传统 |