大口径短炮

例句：

1. 1.The army has a large-caliber short gun for its infantry units.
   军队为其步兵单位配备了一种大型口径短管炮。
2. 2. The artillery unit used a large-caliber short gun to suppress the enemy's fire.
   炮兵单位使用了一种大型口径短管炮来压制敌人的火力。
3. 3. In the battle, the soldiers fired their large-caliber short guns at the enemy positions.
   在战斗中，士兵们用他们的大型口径短管炮向敌人阵地开火。