Bituminous coal
volume
British pronunciation/baɪtjˈuːmɪnəs kˈəʊl/
American pronunciation/baɪtˈuːmɪnəs kˈoʊl/

"bituminous coal"的定义和意义

Bituminous coal
01

rich in tarry hydrocarbons; burns readily with a smoky yellow flame

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