coalification / ˌkoʊ lə fɪˈkeɪ ʃən /

🎓大学词汇煤化煤炭化煤化现象煤化作用

coalification 的定义

n. 名词 noun

Geology.

  1. the conversion of plant material into coal by natural processes, as by diagenesis and, in some instances, metamorphism.