以下为句子列表:
英文: 2 Petroleum crude oil: Refers to naturally occurring crude oil that is mixtures of hydrocarbon compounds that contain mainly paraffin hydrocarbon, cycloparafin hydrocarbon, and aromatic hydrocarbon.
中文: 二石油原油:指一种源于自然界之原油,为碳氢化合物之混合物,其主要成分为石蜡烃、环烷烃、芳香烃等。
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英文: A device for burning or chemically altering unburned or partially burned carbon compounds in exhaust gases.
中文: 排气后燃器用以充分燃烧或从化学上改变废气中未完全燃烧或部分燃烧的含碳化合物的设备
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英文: [Objective] The research aimed to master the distribution characteristics of anthraquinone compounds in the stem of Rheum tanguticum Maxim. et Balf.
中文: 摘要[目的]为了系统掌握六盘山鸡爪大黄茎蒽醌类化合物的分布特征。
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英文: 8 compounds were identified for the essential oil extracted by supercritical carbon dioxide, and its main components have been found to be myristic acid, myristicin, terpinen--ol, α-pinene and safrole.
中文: 水蒸气蒸馏法提取挥发油主要成分为 β 蒎烯、松油烯 醇、α 蒎烯、γ 松油烯、β 水芹烯等 ;
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英文: A brief review on recent progress in the chemistry of muguet odorants. Various new products and compounds are important discussed.
中文: 本文对近十几年来日化用铃兰型香料的研究进展作一简介,重点讨论了近年上市的合成香料新产品和研究的一些新化合物;
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