以下为句子列表：
英文: 1959 Cyclophosphamide, an alkylating agent designed to improve the selectivity of cancer drugs, approved by FDA.
中文: 1959年,FDA批准烃化剂环磷酰胺为抗癌药,使抗癌药物有了更多的选择.
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英文: Advances on molecule-bolt selective monochlorination and reaction-separation coupling techniques for chlorination reaction in the world were introduced, and the control technology which achieved high selectivity was showed.
中文: 通过介绍国内外分子筛择形催化氯化及氯化反应分离耦合工程技术的进展，展示实现有机氯化反应高选择性的控制技术，为氯化产品工业技术的提升提供参考。
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英文: Application : This series can be widely used in the communication systems of Intermediate Frequency for improving selectivity and anti-jamming capacity of signals.
中文: 用途：可广泛应用于中频通讯系统中，提高信号的选择性和抗干扰能力。
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英文: Adopting superfine particle as catalytic agent will exert special influence upon activity and selectivity of the catalytic agent.
中文: 对超细粒子催化剂的应用现状作了详尽的阐述,分析了超细粒子催化剂的制备特点,指出了其发展方向。
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英文: A series of Fe/MnO catalysts (Fe/Mn=/) moditied with K, Cu,Co, Pd and Rh for CO hydrogenation were prepared to obtain a higher selectivity to low molecular weight olefins.
中文: 研究了一系列K、Cu、Co、Pd和Rh改性的Fd/MnO催化剂（Fe／Mn＝／）的CO加氢性能以获得更多的C~=_～C~=_低碳烯烃。
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