Evaluación y cálculo de reservas para la elección del sistema de explotación en el área Yurac Rumi provincia del Chimborazo.
Mining proposes the selective extraction of minerals and other materials (except recently formed organic materials) from the earth's crust. Mining is one of the oldest activities of mankind. Almost from the beginning of the stone age, 2.5 million years ago or more, it has been the main source o...
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| Үндсэн зохиолч: | |
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| Бусад зохиолчид: | |
| Формат: | bachelorThesis |
| Хэл сонгох: | spa |
| Хэвлэсэн: |
2005
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| Нөхцлүүд: | |
| Онлайн хандалт: | http://dspace.unl.edu.ec/jspui/handle/123456789/18236 |
| Шошгууд: |
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