According to that, we marked the workable sector. It breached the traditional ideas of extracted workableseam.
以此为依据,对化工三号采区可采段进行划分,打破了按可采层进行开采的传统观念。
2
The geology survey of Hegang coal field are introduced and some obvious characters of workableseam are compared.
介绍了鹤岗煤田的地质概况,并对主要可采煤层的一些比较明显的特征进行了对比。
3
Through analysed workable coal seam change features, coal-rich zone, the distribution features of coal accumulation Center, describe the pattern of Chengzihe River Formation in Jixi coal Basin.