airspace reservationairspace restricted arearestricted airspace
... 小禁区: goal area 空中禁区: airspace reservationairspace restricted arearestricted airspace 边境禁区: frontier closed area ...
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airspace reservationairspace restricted arearestricted airspace
空域预留空域限制空域
以上为机器翻译结果，长、整句建议使用 人工翻译 。