同义词
1)automatic dead-reckoning instrument system,自动船位推算仪系统2)automatic and reckoning instrument system,自动船位推算系统3)automatic dead reckoning instrument system,自动积算船位仪4)dead-reckoning instrument,船位推算仪5)ships internal navigation system,精密船位推算系统6)relative reckoning navigation system,相对船位推算导航系统
