论文部分内容阅读
在煤或其它矿床的找矿勘探中,数量指标(煤或矿层厚度)和质量指标(煤质或品位)的稳定性都是重要的课题。煤厚稳定性在煤由勘探中尤为重要。国家规范根据煤层
In the prospecting of coal or other deposits, the stability of quantitative indicators (coal or seam thickness) and quality indicators (coal quality or grade) is an important issue. Coal thickness stability is particularly important in coal exploration. National norms based on coal seam