喷气式飞机目前装备的防撞设备已让大型客机的空中碰撞鲜有发生，不过许多轻型飞机和直升飞机并未加载此类设备。
The anti-collision equipment currently fitted to jets has already helped make mid-air encounters between airliners rare, but many light aircraft and helicopters are not fitted with such kit.
鉴于太空中的物质很多，而地球周围的区域则有限，政府希望减少发生碰撞的机会。
With so much stuff in space, and a limited area around our planet, the government wants to reduce the chances of a collision.
关于如何解决这个问题，以往就有一些建议，包括使用人工智能系统来防止空中交通工具之间发生碰撞。
Past proposals to solve this problem have included artificial intelligence systems to prevent collisions between air traffic.
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