coal field meaning in English

煤田，产煤区。

Coal field crook seismic prospecting technology and application
煤田弯线地震勘探技术及应用
Feasibility study of hard gaolin extraction in luling coal field
芦岭井田硬质高岭土开采可行性分析
Analysis on small fault structural characteristcs in xinan coal field
新安井田小型断裂构造特征浅析
Investigation of coking property by datong coal field blending coal
大同煤田双系煤种焦化性质的探讨

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