Because the coal belts of Juye coalfield are thick and steady and the geological structures in the exploration area are medium to complex.
巨野煤田煤层厚度大而稳定，勘探区构造中等偏复杂，因而采用地震先行、钻探验证的综合勘探方法。
2
Wumuchang Area is a local bituminous coal district metamorphized by sub-volcanics in Yiming Coal Field which is located in northeast China.
五牧场区是内蒙东部伊敏褐煤盆地中一个因次火山侵入作用形成的局部的烟煤区。
3
Coalbed gas content of Tunliu coalfield is the highest in Lu 'an coalarea, from gas content and depositing condition, developing coalbed gas is very favourable.