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sealed fire
meaning in English
封闭火
Examples
Extinguishing technology of
sealed fire
area and it ' s restoration
矿井封闭火区的灭火治理与缩封恢复
Sealing fire
zone successfully by mine solidification foam closed filling technology
利用矿用固化泡沫密闭充填技术成功封堵遗留火区
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