coal-seam

英 ['kəʊls'iːm] 美 ['kəʊls'iːm]

• n. 煤层

英英释义

名词 coal seam:

1. a seam of coal

例句

用作名词 (n.)

1. Coal seams intermixed with iron ore.
   煤层和铁矿混杂在一起。
2. The degree of carbonization of coal depends on the temperature.
   煤层的炭化程度取决于温度。