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to phrases
ore grade
stresses
geophys.
класс руды
goldmin.
рудное содержание
(
MichaelBurov
)
tech.
качество руды
;
сорт руды
ore grade
:
52 phrases
in 7 subjects
Geology
6
Geophysics
2
Gold mining
15
Makarov
6
Metallurgy
6
Mining
8
Technology
9
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