以下为句子列表：
英文: Elements on the Quality of Valeric Dialdehyde Preparation
中文: 影响戊二醛制剂质量的几个因素
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英文: In addition, under the NBPT treatment, pH values in manure, emissions of valeric acids ( 7.%, P<0.0) and iso-valeric acids (0. %, P<0.0), and the counts of Clostridia ( .7%, P<0.0) were reduced.
中文: NBPT的使用还能降低猪粪pH值,减少戊酸( 7.%,P<0.0)和异戊酸(0. %,P<0.0)的含量。
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英文: One of the methods is studied to synthesize ,-Pentanediol. The reaction is carried out from a material of valeric acid,and ,-Pentanediol is prepared by bromization,hydrolysis and reduction.
中文: 研究了,-戊二醇的合成方法,以正戊酸为原料,经过溴代、水解和还原反应制得,-戊二醇。
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英文: Simple synthesis of ( R ) and ( S ) methyl valeric acid
中文: (R)和(S)--甲基戊酸的合成
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英文: Synthesis of -bromo-valeric acid
中文: —溴戊酸的合成研究
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