以下为句子列表:
英文: Isolation and Identification of Natural Avirulent Strain of Newcastle Disease Virus from Goose
中文: 鹅源新城疫病毒自然弱毒株的分离与鉴定
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英文: Genetic difference between Streptococcus suis serotype 2 virulent strain and avirulent strain by suppression subtractive hybridization
中文: 抑制性消减杂交技术分析猪链球菌2型毒力相关基因
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