请朋友帮忙翻译一句话near-ideal vapor-air concentrati ...？ 看看这个说明楼上的理解是有道理的哈. 'the board leaves it to the courts to determine legal responsibility for the estimated $28 million in damages the blast caused. and it was unable to pinpoint the ignition source for the volatile mixture of chemicals that, due to overheating and lack of ventilation, had vaporized into a lethal cloud within the cai ink-manufacturing plant on water street. the critical mistake: a plant employee, perhaps distracted by thoughts of the upcoming holiday, forgot to turn off an open steam valve before leaving that night, which caused a mixture of highly flammable liquid contained in a 2,000-gallon tank "to overheat and accumulate in the building production area to what is calculated to have been a near-ideal vapor-air concentration."'查看更多
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