同义词
1)automatic and reckoning instrument system,自动船位推算系统2)automatic dead-reckoning instrument system,自动船位推算仪系统3)ships internal navigation system,精密船位推算系统4)relative reckoning navigation system,相对船位推算导航系统5)automated marine propulsion system,船舶自动推进系统6)AMVER system,商船船位自动报告系统
