以下为句子列表：
英文: Patents on removal of olefins in HCFCs and HFCs at home and abroad are gathered up and classified, principles and characteristics of every method are reviewed, the author also points out that adsorption method is an imporant research trend in refining tec
中文: 摘要概括了国内外氢氯氟烃和氢氟烃中烯烃脱除方法的专利文献，评述了各种方法的原理、特点，并指出吸附法是当前氢氯氟烃和氢氟烃精制技术的发展趋势之一。
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英文: Provide technical support and expertise relative to Olefins and Nitriles products to the Commercial Team and other departments as needed together with lab TS people.
中文: 与实验室技术服务人员共同为商务部和其他部门提供所需要的有关烯烃产品和腈类产品的技术支持和专业知识。
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英文: Sasol Olefin &Surfactants, a global division of Sasol Chemical, is the result of integration of the former CONDEA activities and the former Sasol Alpha Olefins activities, after acquisition of CONDEA on March 31, 2001 by Sasol.
中文: 沙索烯烃和表面活性剂是沙索化学的全球性分支机构，是沙索公司2001年3月31日收购德国康迪雅化学有限公司后，将前康迪雅与前沙索a-烯烃的业务相结合的产物。
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英文: The catalytic applications of the mesoporous materials in epoxidation of olefins are summarized, including the preparation methods and modification of the materials, catalytic performance and characterization of active sites.
中文: 摘要本文综述了介孔材料在烯烃环氧化反应中的应用，包括材料的制备方法、催化性能以及活性中心的表征。
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英文: The recent advances in olefins oligomerization catalyzed by metallocene catalyst have been reviewed. Emphasis is given to the catalytic reactions, cyclization and prospect of application of metallocene catalyst.
中文: 摘要本文介绍近年来国内外在茂金属催化剂烯烃剂聚与环化方面的研究进展，主要侧重于茂金属催化剂烯烃剂聚，α,ω-二烯的环化及应用前景。
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