stratosphere fighter

例句：

1. 1. The stratospheric fighter is designed to withstandthe harsh conditions of the upper atmosphere.
   这种平流层战斗机设计用来抵御上大气层的恶劣条件。
2. 2. The stratospheric fighter was used during the ColdWar to protect sensitive military installations.
   冷战期间，这种平流层战斗机被用来保护敏感的军事设施。
3. 3. The stratospheric fighter has become a symbol ofnational pride and technological advancement.
   这种平流层战斗机已成为国家自豪和技术进步的象征。