英语词汇“petroleum tar”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	petroleum tar
释义	petroleum tar petroleum tar [pə′trō·lē·əm ‚tär] (materials) A viscous, black or dark-brown product of petroleum refining; yields substantial quantity of solid residue when partly evaporated or fractionally distilled.
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