bitumen
畅通词汇
英
['bɪtʃəmən]
美
[bə'tuːmən]
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Noun:
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any of various naturally occurring impure mixtures of hydrocarbons
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用作名词 (n.)
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Bitumen paper can be burnt to gain energy.
沥青纸可以焚烧以获得能量。
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In their natural state, oil sands are made of quartz sand covered by layers of water and bitumen.
在自然状态下
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海词词典,十七年品牌