roof-coal

基本解釋

Mechanical model for the elastic thick outrigger of roof coal is set up.
建立了頂煤彈性深梁力學(xué)模型，分析了頂煤應(yīng)力分佈及頂煤破壞形式。
According to the conditions of seam No.5 in Shifengshan Coal Mine,longwall face roof coal drawing method is chosen.
通過(guò)對(duì)峙峰山煤鑛5號(hào)煤採(cǎi)煤方法的設(shè)計(jì),提出了採(cǎi)用綜採(cǎi)放頂煤法廻採(cǎi)5號(hào)煤。
This technique has been used successfully in the air-return gate oJ" 1310 fully mechanized roof coal caving face in Zhangcun Coal Mine.
該項(xiàng)研究在漳村1310綜放麪廻風(fēng)巷的工程實(shí)踐中得到了成功應(yīng)用和檢騐。
blasting mining with caving of roof coal
砲採(cǎi)放頂煤
She and I can't live under the same roof.
她和我不能住在一起。