复杂结构薄煤层综采与矿山压力 【正版书籍】 - Tapa blanda

Thin Seam Mining complex structures and underground pressure(Chinese Edition)

paperback. Condición: New. Paperback. Pub Date :2014-01-01 Pages: 198 Language: Chinese Publisher: Coal Industry Press for tuberculosis and iron sulphide thin seam partings hard to achieve the core of fully mechanized coal mines use pressure flaking broken coal and tuberculosis . Thin Seam Mining complex structure with underground pressure in-depth and systematic introduction to the Thin Seam coal mining face underground pressure and wall damage law. the use of pressure mines reasonable supporting strength and cutting . Nº de ref. del artículo: BX066597

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