薄煤层炮采工作面DW(X)型柱塞悬浮式单体液压支柱研制与应用
박매층포채공작면DW(X)형주새현부식단체액압지주연제여응용
Research and application of DW (X) type pillar- tuck type single- body hydraulic pressure support for thin coal seam blast mining face
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