gas abnormal effusing area
gas abnormal effusing area
气体异常涌出面积
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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According to domestic and international statistic data, the occurrence probability of gas explosion is not very high, but it occasionally occurs in gas abnormal effusing area of low gas mines.
国内外统计资料表明，高瓦斯矿井发生瓦斯爆炸事故的机率并不是很高，低瓦斯矿井的瓦斯涌出异常区却时有瓦斯爆炸事故发生。
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