- a soft black coal, rich in volatile hydrocarbons, that burns with a smoky yellow flame. Fixed carbon content: 46–86 per cent; calorific value: 1.93 × 107 – 3.63 × 107 J/kg
| 单词 | bituminous coal |
| 释义 | WordReference Random House Learner's Dictionary of American English © 2024 biˈtu•mi•nous ˈcoal, n. [uncountable] WordReference Random House Unabridged Dictionary of American English © 2024
bitu′minous coal′,
Collins Concise English Dictionary © HarperCollins Publishers:: bituminous coal n
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