underground fire meaning in English

地下火灾
地下水灾

Underground fire smoke spread and control methods
地下工程火灾烟气蔓延及控制
Pvc pipe and couplings , polyvinyl chloride , for underground fire service
地下消防装置用聚氯乙烯
Underground fire pump adapter
地下式消防水泵接合器
Comprehensively using underground fire sealing technique to guarantee mine safety
综合运用井下密闭技术确保矿井安全
Underground fire hydrants
地下消防栓

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