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单词 非常易燃
释义 〔heptane〕A volatile, colorless, highly flammable liquid hydrocarbon, C7H 16, obtained in the fractional distillation of petroleum and used as a standard in determining octane ratings, as an anesthetic, and as a solvent. 庚烷:一种易挥发、无色、非常易燃烧的液状碳氢化合物,C7H 16,由石油的分级蒸馏而来,用作辛烷分级的标准,亦可作麻醉剂和溶剂
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