单词 | non-periodic |
释义 | non-periˈodic, a. [non- 3.] Characterized by or exhibiting a lack of periodicity; without regular recurrence; = aperiodic a.
1843Scientific Mem. III. 221 (heading) On the non-periodic variations in the distribution of temperature on the surface of the earth. 1902Encycl. Brit. XXVII. 161/2 The non-periodic comets appearing since 1700 are nearly all in the hands of computers. 1932W. L. Graff Language & Languages 17 Many so-called musical tones are nonperiodic. 1965Math. in Biol. & Med. (Med. Res. Council) iv. 141 If the time occupied by one complex cycle is assumed to increase to infinity, then a Fourier Integral..may be developed which describes, again in terms of sines and cosines, the waveform of a transient or nonperiodic function. |

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