不用: need not助: help; assist; aid; support航: boat; ship设备: equipment; device; facility; ...的: 4次方是 The fourth power of 2 i ...盲目着陆: blind approach; blind landin ...盲目着陆: [航空] blind approach; blind landing无线电盲目着陆设备: radio blind landing equipment盲目着陆雷达: blind landing-aid radar盲目着陆能力: blind-landing capability助航设备: aid to navigation; aids to navigation; air navigation aid; navigation aids; navigation instrument; navigational aids飞机盲目着陆系统: navaglide盲目着陆标向系统: blind approach beacon system盲目着陆电子系统: autoland盲目着陆脉冲系统: pulsed landing system盲目着陆实验所: blind landing experiment unit盲目着陆试验装置: blind landing experiment盲目着陆系统信标: instrument landing system localizer助航标志助航设备: aids to navigation避碰助航设备: anticollision aid长程助航设备: long distance aids电子助航设备: electronic aid to navigation; electronic navigational aids; electronic navigational equipment短程助航设备: short(range)distance aids目视助航设备: visual aid远程助航设备: long range aids