在矿床的开发阶段各矿山开采技术条件不尽相同,采用与某时期相应的技术经济指标,用价格法计算该时期的矿石工业指标是更为确切的。 1973年9月出版的《冶金矿山设计参考资料》(下称“参考资料”)上册,第二章第一节中,以某露天铜矿为例介绍了价格法,其所用公式为: 当最终产品为金属时 In the development stage of the deposit, the technical conditions of mining are not the same. According to the technical and economic indexes corresponding to a certain period, it is more accurate to calculate the ore industry index by the price method in this period. In the first section of Chapter 2 of “Metallurgical Mine Design Reference Materials” published in September 1973 (the “Reference Materials”), the price method was introduced by taking an open-pit copper mine as an example. The formula used is as follows: When the product is metal