为了充分合理地开发矿产资源,提高矿山开采的经济效益,根据中国金属学会第一届矿山测量学术会议的建议,中国金属学会采矿学术委员会矿山测量学组拟于1983年召开“损失、贫化”专题讨论会.征文内容如下: 一、损失率、贫化率计算方法; In order to fully and reasonably develop mineral resources and improve the economic benefits of mining, according to the suggestion of the First Metallurgical Society of China on Measuring Conferences for Mining, the Mining Metallurgy Research Group of Mining Surveyors of the Chinese Academy of Metallurgy proposed to hold the “Loss and Poverty Alleviation” in 1983, Symposium. The essay reads as follows: First, the loss rate, depletion rate calculation method;