是指工业矿石(或金属含量)丢失的程度，即损失矿石量或金属量占该采场或采场区段内矿石储量或金属量的百分比。
采矿损失率和矿石贫化率是表征一个矿山企业采矿技术水平和管理水平的重要参数。
Mining loss and dilution are important indices that demonstrate the technology level of mining and management level of a mine.
矿石的贫化率与损失率是矿山企业生产管理中的两项重要指标。
The ores dilution and loss rates are two important indexes in the mine.
矿石的贫化率和损失率较高，是造成矿产资源浪费和制约矿山企业经济效益的突出问题。
The higher dilation and loss rates can result in the waste of mine resources and restriction economic benefits of mine enterprises.
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