名词
中文翻译：衰变比
同义词：
['decline ratio', 'decay rate']
例句：
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1.The study found that the population of this species is on a steady decline.
研究发现，这种物种的种群正在稳步下降。
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2. The researchers used various techniques to measure the decay ratio of the sample.
研究人员使用各种技术来测量样本的衰变比率。
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3.The company's financial performance has been monitored closely due to its high decay ratio.
由于高衰变比率，该公司的财务状况受到了密切监控。