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МАЪРУЗА №17
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Learning the fundamentals of extracting inclined beds using sub-horizontal methods, including identifying and choosing opening methods in layer formations, shale seams, and interlayer surfaces
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#горизонтал қатламлар#қия стволлар#штолънялар
Premium Content
МАЪРУЗА №17
5,000so'm
Betlar soni
9 taFayl hajmi
89.99 KBFayl turi
.docx✓
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