air gasn.风煤气(含有空气的煤气；供点灯；取暖用)airn.空气；天空；空中；感觉；神态；曲调；装腔作势v.晾干；使通风；广播Air Force Development Plan空军发展计划air bracket insulated lead架空绝缘导线air-entraining admixture加气掺合料air-lift oxidation ditch气升式氧化沟Air Force Security Officer空军安全官Air Defense Warning System防空警报系统Air Defense Warning Yellow二级防空警报(空袭预备警报)air service between cities城市间的航班服务air circulation sterilizer空气循环消毒箱air - air identification空对地识别

1. At the same time air is sucked into the inlet to replace the exhausted air.
   同时，外面空气由进气口吸入代替被排出的空气。
2. Are air conditioning intakes which may permit the entry of cargo vapours closed?
   有可能吸入货物蒸汽的空调系统进气口是否已关闭？