Showing 3,141 - 3,160 results of 4,993 for search '"miner"', query time: 0.11s Refine Results
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  8. 3148
    Published in 2021
    Repositorio Repositorio Institucional USTA

    ... of the areas and the implementation of safety and health at work for miners, to the extent that environmental...
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  9. 3149
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  14. 3154
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  16. 3156
    Published in 2010
    Repositorio Universidad Nacional de Colombia

    ... with a sample without substitution. Viscosity, acidity, pH, mineral content (calcium and phosphorus...
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  17. 3157
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