空气循环: air circulation; air cycle室: room空气循环: air circuit; air circulation; air cycle; air recirculation; air-circulating空气循环管: air circulating umbilical; aircirculating umbilicall空气循环机: acm air cycle machine; air-cycle machine空气循环炉: umluftofen fan oven空气循环率: air calculation through; rate of air circulation空气循环器: air circulator正空气循环: direct air cycle空气循环倍率: air circulating rate空气循环方法: circulating air technique空气循环烘箱: air-circulating oven; air-circulation oven空气循环冷却: air cycle refrigeration空气循环设备: air cycle equipment空气循环系统: air circulation system空气循环效率: air cycle efficiency; efficiency; air cycle空气循环阻力: air circuit resistance内部空气循环: internal air circulatiobn逆流空气循环: reversing air circulation强制空气循环: forced air circulation; forced circulation reboiler; forced-air circulation燃料空气循环: fuel air cycle; fuel-air cycle新鲜空气循环: fresh air circulation直接空气循环: direct cycle; direct-air cycle空气环流；空气循环: air circulation; aircirculation循环室: circulation chamber
