释放出来的气体中的氢气碰到火花，已经发生了爆炸，掀翻了建筑的屋顶，同时，又毁掉了本已经污染的整个系统。
There hydrogen in the released gas met a spark and exploded, blowing the roofs off the buildings but not, it seemed at the time, damaging the containment systems.
轮胎爆炸，钢架折断，起落架扭曲成废铁，还在燃烧的飞机摇摇晃晃地倒向左边，机腹落在水泥铺就的地面上开始滑行，擦出一串灼热的白色火花。
Tires blew, steel snapped, and the landing gear folded. The burning aircraft teetered to port, then the belly hit the concrete and skidded along, trailing a torrent of hot white sparks.
但这次没听到砰的一声，而是传来一声沉闷的爆炸声，接着是噼里啪拉的声音，然后火花四溅。
This time, instead of a popping noise there was a dull explosion, followed by a series of crackling noises and a shower of sparks.
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