以下为句子列表：
英文: Abstract: The free radical alkylation of pyridine with fatty acids in the presence of acidic solvent,a series of derivatives of α－monosubstitute prydine were synthesized using ammonium persulfate and silver nitrate as catalyst.
中文: 文摘:吡啶与脂肪酸在酸性环境中用过二硫酸铵和硝酸银催化，发生自由基烷基化反应，得到产物主要是α－单取代吡啶。
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英文: Abstract: The rare earth-containing PSBR sheet was prepared through vinyl pyridine-SBR (PSBR) latex reacted with rare earth alkoxide, and the thermal oxidation resistance of rare earth-containing composite elastomer was studied.
中文: 文摘:利用稀土醇盐与PSBR橡胶乳液进行反应获得含稀土复合弹性材料进行抗热氧化研究。
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英文: Germanic norfloxacin was prepared for the first time via the reaction of sodium norfloxacin and germanic chloride in pyridine solvent,yield90％.
中文: 首次以吡啶作溶剂，用氟哌酸钠与四氯化锗反应，合成了氟哌酸锗，收率90％。
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英文: Objective The bioactivity of twelve novel pyridine ring derivatives of podophyllotoxin were tested against 3rd instar larvae of Culex pipiens pallens.
中文: 摘要目的研究新型吡啶类鬼臼毒素衍生物对3龄淡色库蚊幼虫的的毒杀活性。
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英文: Results From twelve novel pyridine ring derivatives of podophyllotoxin, three compounds 4.4、4.5 and 4.6 have more higher toxicities than others, and the LC50 were 1.66, 3.96 and 1.54 mg/L respectively.
中文: 结果12种新型吡啶类鬼臼毒素衍生物对3龄淡色库蚊幼虫的毒杀作用有明显的差异，化合物4.4、4.5和4.6的毒杀作用明显高于其它化合物。
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