单词	periodicity
释义	periodicity /ˌpɪərɪəˈdɪsɪti / noun [mass noun] chiefly technical The quality or character of being periodic; the tendency to recur at intervals: the periodicity of the sunspot cycle... Given the coincidence of this period with natural circadian periodicity, interventions designed to promote sleep might focus on widening this 1-hour window to make more time available for sleep. He found that when he arranged the elements in order of increasing atomic weight, similar properties were repeated at regular intervals; they displayed periodicity. Blue is also, in this poem, the emblem of temporal distance, and so of the shadow side, a blue shadow, of the mindful periodicity that orders our lives.
随便看	signalization signalize signallee signaller signal light signal line signally signalman signalment signal molecule signal/noise ratio signal pad signal peptide signal plate signal post signal reaction signal red signal sequence signal service signals intelligence signal station signal strength signal strip signal-to-noise signal-to-noise ratio

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