您要查找的是不是：
- A ground radar station has tracked the overflights of Chinese territory by unidentified aircraft. 一个地面雷达站已追踪到有不明国籍的飞机飞越中国的领空。
- a plane of unidentified nationality; an unidentified aircraft 不明国籍的飞机
- An unidentified flying aircraft. 不明飞行物
- For example, consider an air defense early warning system.If an unidentified aircraft is spotted, it must be identified immediately 例如，设想一个防空预警系统，如果一个不明的飞行被标明了位置，就必须立即分辨它。
- An unidentified man shot the President. 一个身份不明的人开枪射杀了总统。
- The aircraft was flying above thick fog. 飞机在浓雾上空飞行。
- The speed of this aircraft is very high. 这架飞机的速度非常快。
- He assembled the model aircraft bit by bit. 他一块一块地装配飞机模型。
- Enemy aircraft dropped bombs on the city. 敌机向这个城市投掷炸弹。
- The watchtower followed the aircraft by radar. 瞭望塔通过雷达追踪这架飞机的行踪。
- There's not much leg-room in these aircraft. 这些飞机的坐位没有什麽伸腿的空间。
- Artillery and aircraft were involved in the action. 在这次战斗中，使用了大炮和飞机。
- He sat at the controls of the aircraft. 他坐在飞机的操纵装置前。
- The aircraft company deals with freight only. 这家航空公司只经营货运业务。
- All aircraft must fuel before flight. 所有飞机飞行前都必须加油。
- The new aircraft is undergoing safety tests. 这种新飞机正在接受安全性能检验。
- An unidentified flying object appeared on the radar screen. 一个不明飞行物出现在雷达萤幕上。
- The missiles were shot at the aircraft from a ship. 从军舰上向飞机发射导弹。
- The wings of the aircraft had iced up. 机翼上结了一层冰。
- Passengers suffocated in the burning aircraft. 乘客在燃烧的飞机中窒息死亡。
