Filtrar por: Materia
Mostrando ítems 1-5 de 1
capsule of mine working (1) |
classification of theories (1) |
energy of massif (1) |
rock hardness (1) |
rock pressure (1) |
capsule of mine working (1) |
classification of theories (1) |
energy of massif (1) |
rock hardness (1) |
rock pressure (1) |