遥示罗经
remote-indicating compass
磁罗经校正
magnetic compass adjustment
磁罗经指向误差
directive error of magnetic compass
磁罗经装设
magnetic compass installation
磁罗经自差
magnetic compass autodyne
deviation of magnetic compass
海军传送磁罗经
admiralty transmitting magnetic compass
陀螺稳定磁罗经
gyrostabilized magnetic compass