1) structure zoning of overburden strata
覆岩结构分带
2) cover rock construction
覆岩结构
1.
This article analyzes the coal seam condition that lies hidden under the nine dragons river,the key element in mining deep coal seam,favourable and unfavourable conditions in mining under the nine dragons river,cover rock construction.
通过对九龙溪河流下煤炭资源的埋藏情况、影响深部煤层开采的关键因素、实现九龙溪下煤炭资源安全开采的不利条件和有利条件以及覆岩结构分析,利用相似材料模拟试验和数值模拟分析法预计覆岩破坏高度,进行了防水安全煤岩柱的设计、回采上限标高的确定、以及技术可行性和安全可靠性分析。
3) overburden large structure
覆岩大结构
1.
Fully-mechanized sublevel coal caving face full-seam mining thickness is increasing, the movement range of overburden stratum also increasing, most obvious character is the more capacious range and more large span overburden large structure that formed in the higher position.
综合机械化放顶煤采场一次采出厚度加大，上覆岩层运动范围也必然加大，最明显的特征是在采场覆岩更高层位上形成范围更广、跨度更大的覆岩大结构。
5) overburden structure evolution
覆岩结构演变
6) structure of cover rock motion
覆岩运动结构
1.
Starting with analyzing the structure of cover rock motion, combining with the statistically analyzed results, this paper studied destruction mechanism of coal bed floor rock mass under the common effects of the different structures of cover rock motion and confined water, performed examination with the on-the-spot test result.
本文从分析煤层覆岩运动结构入手，结合统计分析结果，研究了在不同覆岩运动结构下及承压水共同作用下煤层底板岩体的采动破坏机制，并用现场测试结果进行了验证。
补充资料：间接带隙(见半导体的能带结构)
间接带隙(见半导体的能带结构)
indirect band gap
I’ed接带隙indireet band gap见半导体的能带结构。
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