roof supports meaning in Chinese
罐顶桁架
Examples
- Inlet head of roof support ; assembly drawing , parts
屋顶支撑的入口压头.零件装配图 - Study on the key bed theory of roof supporting in stope
采场支撑顶板关键层理论的研究 - Roof supporting of thick coal drift in sitai mine
四台矿厚煤层综采顺槽及切眼顶板支护问题探讨 - Stydy on broken - roof support technology
破碎顶板支护技术研究 - Dynamic forecasting and roof support quality monitoring of rigid roof located
坚硬顶板条件的支架设计分析