本文论述了对一个矿床可以得出不同状态的品位一吨位曲线,着重指出了根据不同估计方法和品位控制程序得出的真实值、估计值和实际生产值之间的系统偏差。它并不是要对品位-吨位曲线的预测提供一个通用的解决办法,而是衷心地希望那些用估算的品位和吨位数据来确定采矿生产中最优边界品位的矿业经济学家能对这个问题引起充分的注意。 This paper presents a grade-tonnage curve for different states that can be derived from a single deposit, highlighting systematic deviations between real, estimated and actual production values ​​based on different estimation methods and grade control procedures. Rather than providing a generic solution to the prediction of grade-tonnage curves, it is heart-wishing that mining economists who use the estimated grade and tonnage data to determine the optimal boundary grade in mining production can cause this problem Full attention.