Airolan.艾罗拉(在意大利；东经 14º33' 北纬 41º03')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 hydraulic accumulator空气水压蓄力器air- to - air missile空空导弹Air Corps Training Center飞行中队训练中心Air Force Tactical Center空军战术中心air-compression station空压站Airbase Defense Simulator空军基地防御模拟器air phase volume fraction气相体积分数air defence of the troops部队防空Air-tight deoxygenation密封降氧air turbine dental engine气动涡轮牙钻,风动牙钻机

1. The layer of air near the earth is cooler than an overlying layer.
   靠近地表的空气层比其上面的层气温低。
2. If the thickness of one air layer is changed, a defect comes into being, and the corresponding defect mode in the PBG will change accordingly.
   如果改变某空气层的厚度，会在光带隙中产生缺陷态，缺陷态的位置随该空气层的厚度的改变而改变。