空域的英文：
airspace

The area was scanned for signs of enemy aircraft.
该空域用雷达扫描以便发现敌机踪迹。

The United States could also use Turkish airspace to ferry troopssintosnorthern Iraq
美国同时也可以使用土领空往北伊拉克境内运送军队。

An aircraft intruded China's airspace over... area for reconnaissance
一架飞机进入……地区，侵入中国上空进行侦察。

The airspace above the venue was designated as a no-fly zone.
婚礼举行地点的上空被限定为禁飞区。