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    Mathematical analysis of the echo-impulse position detection by the dual-frequency sensing method

    Mathematical analysis of the echo-impulse position detection by the dual-frequency sensing method

    Publicado 2014
    Ligazón do recurso
    Electrónico Capítulo de libro
  2. 2
    Acoustic borehole depth-gauge with the dual-frequency sensing method

    Acoustic borehole depth-gauge with the dual-frequency sensing method

    Publicado 2016
    Ligazón do recurso
    Electrónico Capítulo de libro

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