超低队高中效空气过滤器
high efficiency filter with ultra-low resistance
超细特中空涤纶
superfine hollow polyester
防空装备体系
Surface to air missile armament system
高空空中交通管制
HAATC High Altitude Air Traffic Control
航空装备事故
aviation equipment accidents
航空装备维修
maintenance of aviation equipment
aviation material maintenance
航空装备研制项目
aviation development program
航空装备预研
aviation equipment development
空空中冷系统
Air-to-air intercooler system
空中飞试仪电系统
airborne test instrumentation system