coalification.
/koh-luh-fi-key-shuhn/US // ˌkoʊ lə fɪˈkeɪ ʃən //
煤化,煤炭化,煤化现象,煤化作用
Definitions
n.noun · 名词
- 1.
Geology.
- ›the conversion of plant material into coal by natural processes, as by diagenesis and, in some instances, metamorphism.
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