In accordance with affect factor of big blockcoal and raise technical measures.
针对大块煤率的影响因素提出了技术措施。
2
Taking blockcoal as experimental coal sample, gas emission characteristics of blockcoal was tested and studied.
以大块煤为实验煤样,实验研究了大块煤瓦斯放散特性。
3
Accordingly, the distribution of abutment pressure on the blockcoal pillar is measured at working face with a steeply inclined seam of the12010 face, NO.