雷管，底火，导火线装有少量爆炸物的帽或管，用来引爆枪炮或地雷、水雷等 A cap or tube containing a small amount of explosive used to detonate the main explosive charge of a firearm or mine.
枪炮工制造或维修武器的人 One that makes or repairs firearms.
枪炮声整天响个不停。 The guns banged away all day.
我们的炮手[枪炮]一直不停地向敌军射击。 Our gunners/guns kept blazing away at the enemy.