A new thought is proposed to forecast mineralization of endogenetic deposits based on metamorphic gradeofcoal.
据此提出了根据煤变质程度进行内生矿床成矿预测的新思路。
2
Put the trained neural network, the indexes database ofcoal and gas outburst and other programs together constituted the system to evaluate the mine outburst dangerous grade.
训练好的神经网络、矿井煤与瓦斯突出指标数据库和其它程序绑定在一起组成了矿井突出危险等级评价系统。
3
The Ohio river has been called the American Ruhr, As in Germany, the area along the river is rich in valuable deposits of high-grade coking coal and is well known for its steel industry.