二采 meaning in Chinese
two false collections
Examples
- Ventilation technology reform of second west mining area in xinghua coal mine
杏花矿西二采区通风技术改造 - Visual numeric simulation of the height of fractured zone in no . 2 northern working area in donghuantuo mine , kailuan
开滦东欢坨矿北二采区冒裂带高度可视化数值模拟 - By means of similar simulation , lateral abutment pressure distribution and concentration degree which at the face of the upper coal , the distance between peak stress and coal surface , the influence circle of abutment pressure , and the transfer and weakening of concentrated pressure at the bottom side are analyzed on actual geology data in pingdingshan 8th mine f15 and f ( subscript 16 - 17 )
摘要采用相似模拟的方法，以平顶山八矿己二采区己15和己(下标16 - 17 )煤层实际地质资料为基础，分析了近距离煤层上煤层开采时，在上煤层采场两侧向的支承压力分布及集中程度、峰值距煤壁的距离、支承压力的影响范围；一定范围内底板中集中应力的传递及渐衰减特征。