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semisplint coal
释义
semisplint coal
semisplint coal
[
¦sem·i′splint ′kōl
]
(geology)
Banded coal that is intermediate between bright-banded and splint coal, and has 20-30% opaque attritus and more than 5% anthraxylon.
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更新时间:2026/6/5 9:53:08