1) botfom gathering coal
底回煤
3) coal floor
煤层底板
1.
Numerical analysis of breaking depth of coal floor caused by mining pressure;
矿山压力对煤层底板破坏深度的数值分析
2.
Forecast of water inrush from coal floor based on least square support vector machine;
基于最小二乘支持向量机的煤层底板突水量预测
3.
Combined ANN forecast of water-inrush from coal floor;
煤层底板突水组合人工神经网络预测
4) coal seam floor
煤层底板
1.
Application of similar material simulation in research of coal seam floor failure regularity;
相似材料模拟在研究煤层底板采动破坏规律中的应用
2.
Research of No.9 coal seam floor's fracture regularityin Xiandewang Coal Mine;
显德汪煤矿9号煤层底板破坏规律的研究
3.
Study of hydrochemical characteristics in Karst water of coal seam floor in the Mining District of North Anhui;
皖北矿区煤层底板岩溶水水化学特征研究
5) soft coal bottom plate
软煤底板
6) seam floor
煤层底板
1.
Environment isotope determination mode for Karst water under seam floor of Wanbei Mining Area;
皖北矿区煤层底板岩溶水环境同位素判别模式
2.
Numerical simulation of water inrush law in coal seam floor with cracks and its application to engineering practice;
含裂隙煤层底板突水规律的数值模拟与工程应用
3.
Research on mining failure features of seam floor;
煤层底板采动破坏特征研究
补充资料：标准煤(见煤当量)
标准煤(见煤当量)
standard coal
、~‘~1人、4《1工兀飞coal)见煤当等
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条