Zobrazeno 1 - 1
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pro vyhledávání: '"Evgenii Kovalskii"'
Autor:
Kirill Gromtsev, Evgenii Kovalskii
Publikováno v:
Записки Горного института.
An analysis of the world experience in the development of potash deposits shows that the main problems arising during their development are a high level of mineral losses, an increased risk of flooding of mine workings as a result of water-proof laye