One of the cars he was towing flew off and struck a house, crushing the air conditioner and gas main system, according to Fire Chief Barry Kobrin.
他拖的其中一辆车飞了出去撞到了一所房子上，撞碎了空调和天然气主要管道。据消防队长Kobrin说。
Most of existing methods for synthesizing fire image are based on particle system, a main drawback of which is heavy computation.
现有的火焰合成算法多数都是基于粒子系统，其主要缺点是运算量大。
The main facilities to put out the fire in roof tanks are fixed and semifixed foam extinguishing system.
浮顶油罐火灾扑救的主要设施是固定、半固定泡沫灭火系统。
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