n. an explosive device that is set off in an oil well (or a gas well) to start or to increase the flow of oil (or gas)
n. a small firework that consists of a percussion cap and some gravel wrapped in paper; explodes when thrown forcefully against a hard surface
n. a small explosive device that is placed on a railroad track and fires when a train runs over it; the sound of the explosion warns the engineer of danger ahead
n. armament consisting of a long cylindrical self-propelled underwater projectile that detonates on contact with a target
n. 鱼雷, 水雷, 地雷
vt. 用鱼雷袭击, 破坏