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)
air movement field in stator ducts
numerical calculation of air movement in stator du
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
directional movement unilateral movement
convesion of curved-surface data into borizontal-plane data
data processing for piecing together various 3 D data sets