| 单词 | attrital coal |
| 释义 | attrital coal [ǝ`trīd·ǝl `kōl] GEOLOGY A bright coal composed of anthraxylon and of attritus in which the translucent cell-wall degradation matter or translucent humic matter predominates, with the ratio of anthraxylon to attritus being less than 1:3. |
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