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   英语
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短语
bitumen ['bɪtjumɪn] 名词
石油/石油 bitumen n
bitumen A generic term applied to natural inflammable substances of variable colour, hardness, and volatility, composed principally of a mixture of hydrocarbons substantially free from oxygenated bodies. Bitumens are sometimes associated with mineral matter, the nonmineral constituents being fusible and largely soluble in carbon disulfide, yielding water-insoluble sulfonation products. Petroleum, asphalts, natural mineral waxes, and asphaltites are all considered bitumens 名词
环境 bitumen n
 英语 词库
bitumen ['bɪtjumɪn] 缩写
缩写, 建造 bitn
缩写, 矿业 bt
bitumen: 98 短语, 13 学科
一般6
专利2
农业1
冶金1
化学33
建造16
技术1
材料科学2
煤炭2
科学的1
能源行业7
行业11
运输15