以下为句子列表：
英文: A single-factor experiment was designed to research the effect of nutrition level on body weight of multiparous sows during gestation through investigating the effect of gestation nutrition on the reproduction performance of multiparous sows in subsequent
中文: 摘要采用单因子试验设计，通过对妊娠期不同营养水平连续3胎经产母猪生产的研究，建立妊娠期采食量与泌乳损失及繁殖性能等之间关系的回归方程，研究妊娠期不同营养水平对经产母猪体重变化的影响。
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英文: For nulliparous women (i.e., those who have never given birth) and who ever used OCs and nulliparous women who used OCs for at least 4 years, corresponding ORs were 1.24 and 1.29.
中文: 曾使用过口服避孕药和使用口服避孕药四年以上的未产妇（未生育的妇女）其相关性分别为1.24和1.29。
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英文: Methods: Using high-frequency ultrasound mammary glands of 63 married parous women (age range 22-67 years) who had the history of menstrual distending pain of the breast and who were noticed to have breast nodes were examined and pathologically classified
中文: 方法：用高频探头对年龄在22~67岁，有婚孕史，伴有或不伴有月经期乳腺胀痛，有乳腺结节的63例患者的乳腺进行检查，按世界卫生组织(WHO)乳腺结构不良病理分型，分析乳腺异常声像图。
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英文: CONCLUSION:The method is convenient,fast,reproducible,which can be used for the content determination of gallic acid in viviparous bistort rhizome.
中文: 论:本方法简便、快速、准确、重现性好,可用于蝎子七中没食子酸的含量测定。
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英文: Determination of Gallic Acid in Viviparous Bistort Rhizome by HPLC
中文: 高效液相色谱法测定蝎子七中没食子酸的含量
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