http://sibved.livejournal.com/ ([identity profile] sibved.livejournal.com) wrote in [personal profile] sibved 2015-04-08 01:42 am (UTC)

Георадар - для зондирования поверхностных слоев земли (пустоты, примеси, слои и т.д.) и ультразвуковой дефектоскоп - для определения пустот внутри материала. Поиском найдете различные их модификации.
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