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单词
coalification
释义
coal·i·fi·ca·tion
AHD
[kō'lə-fĭ-kāʹshən]
D.J.
[ˌkəʊləfɪˈkeɪʃən]
K.K.
[ˌkoləfɪˈkeʃən]
n.
(名词)
Compression and hardening over long periods of time, the processes by which coal is formed from plant materials.
煤化作用:经过长期压缩和硬化,植物成煤的过程
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更新时间:2026/10/22 6:11:34