Lecture 21: Classification of Rock Mass: Rock Mass Rating (RMR) - 1
IIT Roorkee July 2018
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Lecture 21: Classification of Rock Mass: Rock Mass Rating (RMR) - 1
27 150 просмотров · 5 лет назад
IIT Roorkee July 2018
302 тыс. подписчиков
27 150 просмотров · 5 лет назад
Classification of rock mass, Rock Mass Rating,
