Showing 241 - 260 results of 1,343 for search '"petroleum"', query time: 0.13s Refine Results
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    Trabajo de grado de pregrado
    Published in 2017
    Repositorio Séneca: repositorio Uniandes

    ...Petroleum industry has a great influence in Colombian economy. Because of this, the drastic price...
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    Article of journal
    Published in 2016
    Repositorio Universidad Nacional de Colombia

    ... will be celebrated in April, the Association of Petroleum Geologists Annual Convention and Exhibition 2017...
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    Published in 2009
    Repositorio Universidad Nacional de Colombia

    ... suelo al reducir los niveles de contaminación. / Abstract. In order to deal with the petroleum...
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  16. 256
    Article of journal
    Repositorio Universidad Nacional de Colombia

    ... with petroleum ether and ethyl acetate. The total extract and the two fractions were diluted at different...
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