网络释义
1)navigation system,助航系统2)navaid,助航系统3)vessel navigation aiding system,船舶助航系统4)civil navigation aids system,民用助航系统5)navigation aid,助航6)aid-to-navigation,助航7)audible aids to navigation,助航8)navigation supported information,助航信息9)flight-aid,民航助航10)Port Navigation-Supporting,港口助航
