共 50 条
- [27] THE PLANNING AND ESTABLISHMENT OF THE GROOTEGELUK COAL-MINE JOURNAL OF THE SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY, 1982, 82 (12): : 341 - 352
- [28] A MODEL FOR UNDERGROUND COAL-MINE DESIGN PROCEEDINGS : 1989 MULTINATIONAL CONFERENCE ON MINE PLANNING AND DESIGN, 1989, : 59 - 69
- [29] Methane content of coal-mine air TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1927, 75 : 592 - 597