coal mine drainage
短语词组
- coal -mine drainage 煤鑛鑛井水
- acid coal mine drainage 煤鑛酸性鑛井水
- coal mine drainage drilling 煤鑛排水孔
- coal mine drainage resources 鑛井水資源化
- Coal Mine Gas Drainage 煤鑛瓦斯抽放
- coal mine drainage pump 煤鑛排水泵
- alkalescent coal mine drainage 偏堿性鑛井水
- natural coal mine drainage pit 排水鑛坑
- Acid Coal Mine Drainage ACMD 煤鑛酸性廢水 返回 coal mine drainage