Then the relation between the UCS of coal and rock blocks and the critical load of the penetrating needle is determined.
然后确定煤岩块单轴抗压强度与探针临界载荷的关系。
2
The basic data of making needle coke crude from coal pitch is provided.
为利用煤沥青制取针状焦原料提供了有参考价值的基础数据。
3
The paper compared and analyzed the micro structure differences of the coal base needle coke products produced with the different production techniques at home and abroad.