煤层气 Save Sign in to save words Traditional (Taiwan): 煤層氣 méicéngqì ㄇㄟˊ ㄘㄥˊ ㄑㄧˋ coalbed methane Character by character 煤(méi)coal 层(céng)pile on top of one another 气(qì)gas A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0