英语词汇“coal ball”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	coal ball
释义	coal ball coal ball [′kōl ‚bȯl] (geology) A subspherical mass containing mineral matter embedded with plant material, found in coal seams and overlying beds of the late Paleozoic.
随便看	kondrashin, kirill petrovich kondratenko, roman kondratenko, roman isidorovich kondrateva, marina kondrateva, marina viktorovna kondratev, kirill kondratev, kirill iakovlevich kondratev, viktor kondratev, viktor nikolaevich kondrath afanasevich bulavin kondrath bulavin kondrat iakovlev kondratief cycle kondratieff cycle kondratieff cycles kondratieff wave kondratieff waves kondratief wave october 4, 2017 october 4, 2018 october 4, 2019 october 4, 2020 october 4, 2021 october 4, 2022 october 4, 2023

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