instrument approach landing environment仪表进场着陆条件
instrument box landing system盲目降落方式
instrument box landing仪表着陆
instrument-landing equipment仪表着陆设备
instrument box landing station仪表着陆无线电台
instrument box landing system localizer盲目着陆系统信标
instrument box landing approach system盲目着陆进场系统
Instrument landing System仪表着陆系统;盲目降落方式;仪器降落系统;系统
instrument landing system localizer[航] 仪表着陆系统航向信标;[航] 盲目着陆系统信标;仪表着陆系统航向信标;仪表着陆系统航向信标台
N（名词） an aircraft landing relying only upon instruments and ground radio devices, usually made when visibility is very poor 仪表着陆