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- air observation balloon 探空气球
- Incendiary ammunition had been developed for use against observation balloons in France. 在法国，已经研究出用燃烧弹对付侦察气球的办法。
- Intelligence Fusion of Air Observation Post 对空观察哨情报融合
- Tactical Air Observation Procedures 战术空军观察程序
- The air in the garden was warm and fragrant. 花园里的空气一片温馨。
- The archers sent their shafts through the air. 弓箭手向空中射出利箭。
- The balloon will dilate with air. 气球充气将会膨胀。
- The balloon enlarged as we pumped air into it. 那个气球充气后就变大了。
- Making your own hot air balloon is easy and fun. 做一个自己专属的热气球既容易又有趣。
- I am frightened to fly a hot - air balloon. 我害怕乘坐热气球飞行。
- The balloon was distended with air. 气球因充满了气体而膨胀。
- The lack of air in the room make everyone sniffle. 屋子里空气缺乏，使得每个人都频频吸气。
- During the intermission, let's go out for some fresh air. 幕间休息时，我们出去呼吸呼吸新鲜空气吧。
- The air held a foretaste of a storm. 天气有要括大风的迹象。
- The balloon enlarged as we pumped air into it . 那个气球充气后就变大了。
- The air was reeking with the smell of tobacco. 空气中弥漫着烟草的气味。
- A walk in the fresh air will pep me up. 我在空气新鲜的地方散步就感到精神饱满。
- He served one month with the Air Army in Kuwait. 他在科威特的空军里服役1个月。
- Large air and navel forces were set into action. 庞大的空军和海军部队开始行动了。
- His modesty [air of joviality] was all put on. 他的谦逊[愉快的样子]都是装出来的。
