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自然选育
释义
自然选育
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selection of spontancous mutation
自然选育
不经过人工处理而直接利用微生物的自发突变,选择维持原有水平或具有更优良生产性能的菌种的过程。又称自然分离。
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accident administrative accountability system
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Accidental Death of an Anarchist
accidental degeneracy
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accidental error
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Accidental Firing Bullet
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accidental injury medical insurance
accidentally convergent
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