goaf meaning in English
n.
＝ gob
2.
Examples
- Practice of goaf back filling using solid wastes
固体废弃物充填地下采空区的实践 - Application of coal anchor support along goaf
煤锚支护在完全沿空掘巷中的应用 - Stability analysis of the building foundation for goaf
采空区建筑地基稳定性评价研究 - Methods and prospects for methane drainage in goaf
采空区瓦斯抽放方法与展望 - Safety measures of cutting along goaf and with thin pillar
窄煤柱沿空掘巷的安全措施