名词
中文翻译：Unknown
同义词：
['rate', 'quantity', 'magnitude', 'degree', 'frequency of occurrence']
例句：
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1. Thefrequency of earthquakes in this area is relatively high.
这个地区的地震频率相对较高。
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2.The frequency of light waves is directly proportional to the intensity of the source.
光波的频率与光源的强度成正比。
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3.The frequency of the signal changes with time.
信号的频率随时间变化。