煤层赋存 meaning in English

ocurrence of coal seam

The host characteristics of zhujiajie well field coal seam
朱家街井田煤层赋存特征
Winning technology in unstable occurrence region of coal seams
煤层赋存不稳定区域采煤的回采工艺
Analysis of coal seam distribution characteristic in yuejin mine field
浅析跃进井田的煤层赋存特征
Geological structure and occurrence laws of coalbed in puxi mine field
浦溪井田地质构造与煤层赋存规律
No . 9 coal seam hosting pattern and depositional environment in western jincheng mining area
煤层赋存规律及沉积环境