掩护支架 meaning in English

caving shield
goaf shield
protecting apron
shield support

The mining way of false slope flexible shield support in couverted seam
倒转煤层伪斜柔性掩护支架采煤法
Discussion on some technical issues relating to the shield mining method
掩护支架采煤法若干技术问题探讨
Pillar mining of rock cross - cut with pseudo - sloping flexible shield
俯伪斜柔性掩护支架采煤工作面技术管理
Key coal mining technology of flexible shield support for steep thick coal seam
伪倾斜柔性掩护支架开采石门煤柱

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