“煤层”怎么读

“煤层”的英语可以翻译为：[地质] coal rake，coal seam，coal bed，coal measures ...

英国煤层的平均厚度为1米。The average UK coal seam is one metre thick.他正忙于勘探煤层.He is busy with proving up a coal deposit.煤层的炭化程度取决于温度.The degree of carbonization of coal depends on the temperature....