detonation [ˌdetəˈneɪʃn]

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n.爆炸；巨响

when something is detonated

A fearful detonation burst forth on the barricade. 街垒传来一阵骇人的爆炸声。
Within a few hundreds of microseconds, detonation is complete. 在几百微秒之内, 爆炸便完成了。