短語詞組短語electronic magnetic compass 電子磁羅盤EGC Electronic Gyro Compass 電子陀螺羅盤electronic megnetic compass 電子磁羅盤electronic gyro compass 電子陀螺羅盤Magnetoresistive Electronic Compass 磁阻電子羅盤accurate electronic compass 精確的電子羅盤儀a highly accurate electronic compass 高度精確的電子羅盤儀 返回 electronic compass