1) ratio of mining height to caving height
采放高度比
2) 9 mining height
采放高度
3) the ratio of excavating thickness to caving thickness of coal seam
采放比
4) mining depth and mining height ratio
采深采高比
5) ratio of the caving height and mining height
允许放采比
6) long wall with top coal caving with great mining height
大采高综放开采
1.
Theory study on the load on support of long wall with top coal caving with great mining height in extra thick coal seam
特厚煤层大采高综放开采支架外载的理论研究
补充资料:建筑物高度比
建筑物高度比
【建筑物高度比】建筑物各部分高度与自各该部分起量至面前道路对侧道路境界线的水平距离的比。基地面前道路临接公园、绿地、广场、河川等宽度,需计人道路宽度计算。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条