名词
中文翻译：相对频率变化率
同义词：
['相对频率变化率，相对频率变化速率']
例句：
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1.The relative frequency variation rate of the earthquake is a key factor in predicting its impact.
地震的相对频率变化率是预测其影响的关键因素。
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2. The study found that the relative frequency variation rate of the disease was higher in urban areas than in rural areas.
研究发现，该疾病的相对频率变化率在城市地区比在农村地区更高。
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3. The relative frequency variation rate of the population growth has been increasing over the past decade.
过去十年里，人口增长的相对频率变化率一直在增加。