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pro vyhledávání: '"I. M. Pekhov"'
Autor:
A. N. Merkulov, I. M. Pekhov, M. E. Dubrovin, Yu. N. Chistyakov, I. V. Artem'ev, Kh. I. Algyukov, V. P. Vylomov
Publikováno v:
Refractories. 26:623-626
A test block for underground working of the Gologorsk section should be located in the section bounded by the section lines 15–20 at level +260 m. The best factors for working the test block will be attained by extracting magnesite in chambers over