emergency position-indicating radio beacon 应急无线电示位标 ; 船载应急无线示位标 ; 指位无线电示标

emergency position indicating radio beacon 紧急无线电示位标 ; 应急示位标

emergency position- indicating radio beacon 应急指位无线电示标

emergency position indicator radio beacon 应急无线电示位浮标

satellite emergency position-indicating radio beacon 卫星应急无线电示位标

Radio Beacon-Differential Global Position System 差分全球定位系统

beacon aircraft position 以信标确定的飞机位置

emergency position-indication radio beacon 应急指示船位线电信标