短語詞組短語magnetic c declination 磁偏角magnetic needle declination 磁針偏角magnetic sensor declination 磁探頭偏差expected magnetic declination 磁偏角期望值Movement of Magnetic Declination 竝做成動畫correction of magnetic declination 磁偏角校正Magnetic declination variometers 磁偏角磁變儀digital magnetic declination model 磁偏角數(shù)字模型MAG DEC Magnetic Declination 磁偏角;磁偏移 返回 magnetic declination