coalfield
n. 煤田
近义词：coalmine，seam，mine，pit，colliery，excavation，
英英释义
Noun
- a region where there is coal underground
例句
用作名词(n.)
- Coal spontaneous combustion is one of the main disasters in Yima coalfield.煤炭自燃是义马煤田的主要灾害之一。