松軟煤 的英文怎麼說
中文拼音 [sōngruǎnméi]
松軟煤
英文
yolkcoal-
Supporting technology practice of soft coal and rock roadway
松軟煤巖巷道支護技術實踐Supporting technology with meshing and bolting in high gas, inflammable, soft - broken coal seam
高瓦斯易燃松軟破碎煤層錨網支護技術Application of bolt - mesh - spurting supporting technique in soft all - coal road
松軟全煤巷道錨網噴支護技術應用Discussion on theory of compound soft rock roof, soft seam along goaf drivage roadway
松軟煤層沿空掘巷理論探討The construction methods and caving protection measures for punching high thick and loosen soft coal seam in luling coal mine no. 2 dark tilt well in huaibei coal mine area are introducded. they include small section enlarged after the heading caving, high negative pressure and multi - raw drilling holes and strenous drawing - off, concentrated cross drill holes, cutting while drawing - off and putting the metal frame away
介紹了淮北礦區蘆嶺煤礦2主暗斜井採用小斷面導硐后刷大、高負壓多排鉆強抽，密集交叉鉆孔邊掘邊抽及設置金屬骨架施工方法和防突措施揭穿高突特厚松軟煤層。After spring plowing it looks oil - blackened or colored by the soft coal which occurs in great veins throughout the state
春耕之後，泥土油亮烏黑，像是被遍布全州的大礦脈里松軟的煙煤染過似的。The research of supporting technology of the tender coal seam workings in deep seam in nantun colliery
南屯煤礦深部松軟煤層巷道支護技術研究Study on support technology for very soft broken rock mine roadway in wannian coal mine
萬年煤礦極松軟破碎巖體巷道支護技術研究Practice of cut hole bolt support at light face in loosen soft seam
松軟厚煤層輕放工作面切眼錨桿支護實踐Mine fire control in fully mechanized coal caving face in high gassy flammable soft broken seam
高瓦斯易燃松軟破碎煤層綜放工作面火災的防治Based on the characteristics of intense deformation - failure of surrounding rock in a soft and thick coal seam roadway along gob area coal mine, the structure calculating model of original rocks around a roadway along gob area is constructed by knowledge of mechanics, and various bolt - mesh - anchor supporting schemes are simulated and supporting parameters optimized, supporting schemes is proposed, which is secure and economic
摘要針對松軟破碎厚煤層綜放沿空巷道圍巖變形破壞特徵，建立沿空巷道原始圍巖結構計算模型，模擬計算各種不同支護設計方案，優化支護參數，選定安全經濟的支護方案。分享友人