以下为句子列表：
英文: A purposive sampling method was used to recruit 54 mothers attending an In Vitro Fertilization/Embryo Transfer and Tubal Embryo Transfer program at an infertility center in central Taiwan.
中文: 本研究采立意取样，样本来自于中部某不孕症研究中心接受胚胎植入成功怀孕的幼儿母亲，共收取54位个案。
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英文: A survey has been carried out of soil erosion in the black soil area at the east piedmont of the Great Xingan Mountains in Hulunbuir, by making use of satellite remote sensing data available and findings of the national survey of soil fertility and assess
中文: 摘要利用卫星遥感资料结合全国耕地地力调查与质量评价项目的实施，在内蒙古呼伦贝尔市大兴安岭东麓低山丘陵黑土区进行了土壤侵蚀现状调查研究，摸清了该地区土壤侵蚀现状。
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英文: Abstract: According to the daga of crops yield and soil fertility changes of long term application of fertilizer and nutrients recycling obtained from ecological stations scatrtered in four typical areas under Chinese Academy of Sciences and State Miniset
中文: 文摘:根据中国科学院和国家科技部分布于四大类型地区的生态站进行的长期施肥及养分循环再利用的作物产量、土壤肥力质量变化研究数据，提出了黑土区农业系统投料中有机碳和磷、氮在饲养——堆腐过程中的循环率。
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英文: Abstract: Better understanding of the immunological mechanisms implying the insemination and the infertility of some men and women is needed and crucial to the development of an effective immunocontraceptive method.
中文: 文摘:更好地理解隐含在受精和某些男女不孕中的免疫学机制对于开发有效的免疫避孕方法是必须而且是至关重要的。
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英文: “If you give the consumer piece of mind that their fertility will be restored, and that their hormones are not going to be affected, they may feel that it is safer to use this contraceptive.
中文: “只要你告诉消费者一点点关于他们的生育能力将能恢复而且他们的激素水平将不会受到影响的观点，他们就会觉得这个避孕药更安全。”
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