mine loss and dilution

• 矿石损失贫化

mine loss and dilution的用法和样例：

例句

1. The relation between ore loss and dilution during drawing in sublevel caving mining is analysedand studied on the hasis of the results from experiments and production.
   本文根据实验及生产放矿结果，分析研究了无底柱分段崩落法放矿过程中矿石损失贫化的关系问题。