During breeding for vertical resistance, horizontal resistance tends to decline because of negative selection pressure.

当培育垂直抗性时,由于负的选择压力, 水平抗性趋于下降.

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In maturation , thymocytes undergo positive and negative selection.

胸腺细胞的发育要经历阳性选择和阴性选择.

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A negative selection algorithm with the variable length detector is proposed in this paper.

检测器生成是非选择算法的关键步骤.

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In 2003, Liston, A clearly proved Aire was very important for the negative selection process.

2003年, Liston, A等的研究为Aire可以 控制自身反应性胸腺细胞的阴性选择提供了直接证据.

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During vertical resistance , horizontal resistance tends to decline because of negative selection pressure.

时,由于负的选择压力, 水平抗性趋于下降.

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