共 50 条
- [31] State of Backfilling in West German Hard Coal Mining. Erzmetall: Journal for Exploration, Mining and Metallurgy, 1986, 39 (11): : 551 - 557
- [33] PREVENTION AND CONTROL OF SPONTANEOUS COMBUSTION IN PILLARLESS COAL MINING. Coal Science and Technology (Peking), 1982, (04): : 6 - 10
- [34] State of Large Borehole Technology in Hard Coal Mining. Erzmetall: Journal for Exploration, Mining and Metallurgy, 1981, 34 (03): : 134 - 139
- [36] The conveyor belt as a excavation and excavation distance system for coal mining. ZEITSCHRIFT DES VEREINES DEUTSCHER INGENIEURE, 1933, 77 : 323 - 324
- [37] MOBILE BRAKE LINE SUPPORT UNITS IN SA COAL MINING. Certificated engineer, 1987, 60 (06): : 17 - 19