共 7 条
- [1] THE USE OF CONTINUOUS MINERS IN SOUTH-AFRICAN COAL-MINES - CONTINUOUS MINERS, AND THEIR OPERATION AT BOSJESSPRUIT-COLLIERY JOURNAL OF THE SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY, 1980, 80 (01): : 5 - 9
- [2] THE USE OF CONTINUOUS MINERS IN SOUTH-AFRICAN COAL-MINES - THE SELECTION AND PERFORMANCE OF CONTINUOUS MINERS AT MATLA-COAL JOURNAL OF THE SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY, 1980, 80 (01): : 10 - 13
- [3] THE USE OF CONTINUOUS MINERS IN SOUTH-AFRICAN COAL-MINES - PILLAR EXTRACTION AT USUTU-COLLIERIES USING CONTINUOUS MINERS JOURNAL OF THE SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY, 1980, 80 (01): : 18 - 21
- [6] THE USE OF CONTINUOUS MINERS IN SOUTH-AFRICAN COAL-MINES - CONTINUOUS MINING WITHIN THE TAVISTOCK-GROUP OF COLLIERIES JOURNAL OF THE SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY, 1980, 80 (01): : 14 - 18
- [7] FLUCTUATIONS IN BAROMETRIC-PRESSURE AS A CONTRIBUTORY FACTOR TO GAS-EXPLOSIONS IN SOUTH-AFRICAN MINES JOURNAL OF THE SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY, 1992, 92 (05): : 131 - 147