以下为句子列表：
英文: 2 Hydrogen is highly flammable and most mixtures of hydrogen and air will burn or even explode.
中文: 氢气易燃度很高，它与空气混合的大多数混合物容易燃烧或发生爆炸。
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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 novel aqueous two-phase system can be formed by the mixtures of a polymer and cationicanionic surfactants.Such a system can be used as a partitioning system of proteins.In this work,we investigated the formation,phase behavior and protein partitioning i
中文: 报道了由正负离子表面活性剂与高聚物混合溶液形成的一种可用于蛋白质的分离及分析的新型双水相萃取体系.研究了正负离子表面活性剂(溴化十二烷基三乙铵/十二烷基硫酸钠)分别与葡聚糖和聚乙二醇混合双水相体系的形成规律、相行为及牛血清蛋白和溶菌酶在双水相体系中的分配.通过在高聚物分子中接上亲和配基，研究蛋白质在双水相体系中的亲和分配.结果表明，在该体系中，表面活性剂与高聚物分别富集于不同相中.升高温度及加入无机盐均可促进双水相体系的形成，不同蛋白质可分配于不同的相中.亲和配基的引入极大地增强了蛋白质分配的选择性.
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英文: Abstract: The development of slag cement was summaried and the influence of compound admixtures with three components on strength and pore structure of high content slag cement (added content 70%～90%) was studied.
中文: 文摘:综述了矿渣水泥的发展、研究了3组分复合外加剂对矿渣掺量(质量分数)为70%～90%的高掺量矿渣水泥强度和孔结构性能的影响。
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英文: AIM Distribution behavior of ofloxacin enantiomers was examined in the aqueous and organic solvent of a two-phase system containing a chiral selector, and the theory was provided for separation of racemic mixtures by solvent extraction.
中文: 目的 研究氧氟沙星对映体在手性环境中的萃取分配行为 ,为外消旋体膜萃取拆分提供理论和设计依据。
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