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
a small firework that consists of a percussion cap and some gravel wrapped in paper; explodes when thrown forcefully against a hard surface
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)
armament consisting of a long cylindrical self-propelled underwater projectile that detonates on contact with a target
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魚雷,魚形水雷 / (鉄道の)発雷信号 / かんしゃく玉 / …を魚雷で爆破する
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