single prop meaning in English

单体支柱

Mine support ; roof bars single props ; lengths
矿井支护.顶梁单体支柱.长度
Mine support ; head for single props ; connecting dimensions
矿井支护.单支柱用顶板.连接尺寸
Mine support ; roof bars for single props ; testing , requirements
矿井支承.单立柱屋顶梁.试验和要求
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
Oil cylinder material capability analysis and its cost forecast of hydraulic single prop used in mines
矿用单体液压支柱油缸材料性能分析及成本测算

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