类别：英语 / 日期：2026-01-02 / 浏览：0 / 评论：0
maceral
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maceral
- 1 . The type of coal - forming is humic coal, vitrinite is a main variations of coal maceral .
- 煤的成因类型以腐植煤为主, 镜质组为主要的显微煤岩组分.
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microsyn macrohardness mephensine macrocinematography microbiostratigraphy megalomaniacal mastoidea millepede majorization meiosis mayhap melanemesis metrotoxin maleimide micrognathia mercapto magnificently mercantile memsize maintainable
