Air Data Computer
大气数据计算机
大气资料计算器
直接数字频率合成
直接数字频率合成(DDS)
automatic digital data assembly system
Landsat7 ETM~+ sensor data
accelerometer sensor assembly
Air Leakage Rate of Air Preheater
air to air heat recovery unit
air to air missile launching envelope
arctic air [= arctic air mass]
continental air [= continental air mass]
main air port exhaust air
marine air [= marine air mass
variable air volume (VAV) air conditioning system
variable air volume air conditioning system