上山保护煤柱应力传递规律解析.

Autor: 张宏伟1, 辛金鑫1., 荣海1
Zdroj: Journal of Liaoning Technical University (Natural Science Edition) / Liaoning Gongcheng Jishu Daxue Xuebao (Ziran Kexue Ban). Aug2021, Vol. 40 Issue 4, p287-294. 8p.
Databáze: Academic Search Ultimate
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