1·Coal seams intermixed with iron ore.
煤层和铁矿混杂在一起。
2·Coal miners; coal seams; coal haulers.
煤矿工；煤层；运煤工。
3·There were coal seams under the small town.
那个小镇的地下有好多煤层。
4·Coal seams, like oilfields, vary hugely in their geology.
就像油田一样，煤层在地底下也非常巨大。
5·Cracks in coal seams are important parameters in coal methane exploration and development.
煤层中的裂缝是煤层气勘探和开发的重要参数。
6·The thicker coal seams are located in a 10-15 km wide belt along which the channel meanders .
较厚的煤层位于河道发生弯曲的、宽10-15公里的地带内。
7·The source and reservoirs are Sunjiawan, Zhongjian and Taiping coal seams of the Fuxin Formation.
阜新组孙家湾煤层组、中间煤层组和太平煤层组是煤层气的生储层。
8·Prewetting of coal seams by water infusion is an essential measure for dust control at working faces.
煤层注水预湿是采煤工作面防尘的治本措施，添加湿润剂是改善煤层注水效果的重要途径。
9·Under complex geological conditions, rheology of coal seams may easily cause interlayer-gliding of coal seams.
复杂地质条件下煤层受层间滑动作用容易发生流变。
10·The sulfide (especially troilite) contained in coal seams is representative a kind of strong reducing environment.
煤层中含有硫化物（特别是硫铁矿），代表一种强的还原环境。