名词
中文翻译：衰老界限
同义词：
['senescence boundary', 'lifespan boundary']
例句：
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1.The aging boundary is a critical factor in determining how long an organism can survive.
衰老界限是决定一个生物体能存活多长时间的关键因素。
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2.As we age, our bodies' ability to repair damage increases, but the aging boundary remains constant.
随着年龄的增长，我们身体修复损伤的能力增加，但老化界限保持不变。
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3. The research team found that the aging boundary for human cells has been extended by 10 years.
研究小组发现，人类细胞的老化界限已经延长了10年。