coal mine water

• 矿井水

coal mine water的用法和样例：

例句

1. In the method, the weights of various evaluation indices are determined by AHP and mine water quality is assessed by FCE.
   利用层次分析法确定了矿井水各评价指标的权重，采用模糊综合评价的方法进行了矿井水质量评价。