“dull coal”的概念、定义、翻译、参考文献-科学参考

单词	dull coal
释义	dull coal [¦dǝl ¦kōl] ^GEOLOGY A component of banded coal with a grayish color and dull appearance, consisting of small anthraxylon constituents in addition to cuticles and barklike constituents embedded in the attritus.
随便看	collapse breccia collapse caldera collapse properties collapse sink collapse structure collapsing pressure collar collar beam collar bearing collar cell collard collared hole collar locator log collar vortex collate colla tempestade collateral bud collateral bundle collateral circulation collateral fiber collateral ligament collateral respiration collateral series collating sequence collating unit

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