The number of repetitions of a complete sequence of values of a periodic function per unit variation of an independent variable
英
美
- 频率，当自变量变化一个单位时，周期函数取同一完整数序的重复次数
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
