单体支柱 meaning in English

individual prop
single prop

Mine support ; roof bars single props ; lengths
矿井支护.顶梁单体支柱.长度
A practical kind of dismantle pillar device used on aluminum alloy hydraulic prop
一种实用铝合金单体支柱拆柱机
Blasting top coal caving technology with steel single props in quot; three - soft quot; seam
型钢单体支柱炮采放顶煤开采技术
Application on blast - winning technology with sublevel caving of hydraulic prop in inclined seam
单体支柱炮采放顶煤技术在大倾角煤层的应用
Mine strata pressure behavior law and surrounding rock control of the top coal caving mining face with hydraulic single props
单体支柱放顶煤工作面矿压显现规律及围岩控制