空中技巧
The birds perched on the television aerial. 鸟停在电视天线上。
The picture is much clearer with the new aerial. 装上新天线后画面清晰多了。
He showed me some aerial photographs. 他给我看了一些空中拍摄的照片。
Aerial navigation by visual identification of landmarks. 地标领航用可视地标来进行飞机航行
Photographic aerial reconnaissance especially of military targets. 空中照相侦察空中照相侦察，尤指军事目的的
