According to the rescue headquarters, an initial investigation showed that the cause of the accident was the local gas explosion underground.
据事故抢险指挥部介绍，现已初步查明，事故原因为井下局部瓦斯爆炸。
According to the rescue headquarters, an initial investigation showed that the cause of the accident was the local gas explosion underground.
据事故抢险指挥部介绍，现已初步查明，事故原因为井下局部瓦斯爆炸。
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