coal mine drainage

短语词组

短语

• coal -mine drainage 煤矿矿井水
• acid coal mine drainage 煤矿酸性矿井水
• coal mine drainage drilling 煤矿排水孔
• coal mine drainage resources 矿井水资源化
• Coal Mine Gas Drainage 煤矿瓦斯抽放
• coal mine drainage pump 煤矿排水泵
• alkalescent coal mine drainage 偏碱性矿井水
• natural coal mine drainage pit 排水矿坑
• Acid Coal Mine Drainage ACMD 煤矿酸性废水
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