And there's also something called a Phalanx gun system, which can shoot down missiles or drones.

此外，还有一种方阵炮系统，它可以击落导弹或无人机。

But now, the Navy is developing what it calls a " hypervelocity projectile, " which is designed to be fired from existing gun systems.

但是现在，海军正在开发一种旨在从现有火炮系统发射的所谓超高音速弹丸。

The ship's two advanced gun systems or (AGS) 920 round turrets magazines, and special long range land attack Projectile (LRLAP) ammunition are the focal points of its design, according to the Associated Press.

据美联社报道，该舰的两个先进火炮系统或（AGS）920 轮炮塔弹匣以及特殊的远程对陆攻击弹（LRLAP）弹药是其设计的重点。