ANALYSIS OF DIFFERENT CONCEPTS OF PILLAR STRENGTH CALCULATIONS FOR USA COAL MINING CONDITIONS.

被引：0

作者：

Krzyszton, Danuta ^{[1
]}

机构：

[1] Politechnika Slaskov, Inst, Mechanizacji Gornictwa, Gliwice, Pol, Politechnika Slaskov, Inst Mechanizacji Gornictwa, Gliwice, Pol

来源：

| 1600年 / 29期

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摘要：

COAL MINES AND MINING

引用

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