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low altitude alert system 强调
军队, 航空	система оповещения об опасно малой высоте
英语 词库
Low Altitude Alert System
运输, 缩写	LAAS
low altitude alert system
航空, 美国人	An automated function of the TPX-42 that alerts the controller when a Mode C transponder- equipped aircraft on an IFR flight plan FP is below a predetermined minimum safe altitude. If requested by the pilot, LAAS monitoring is also available to VFR Mode C transponder-equipped aircraft.