“persistence”的概念、定义、翻译、参考文献-科学参考

单词	persistence
释义	persistence [pǝr`sis·tǝns] ^ELECTRONICS 1. A measure of the length of time that the screen of a cathode-ray tube remains luminescent after excitation is removed; ranges from 1 for short persistence to 7 for long persistence. 2. A faint luminosity displayed by certain gases for some time after the passage of an electric discharge. ^METEOROLOGY With respect to the long-term nature of the wind at a given location, the ratio of the magnitude of the mean wind vector to the average speed of the wind without regard to direction. Also known as constancy; steadiness.
随便看	operation breakdown operation code operation cycle operation decoder operation number operation part operation process chart operation register operations research operations sequence operation time operative ankylosis operator operator algebra operator hierarchy operator interrupt operator process chart operator productivity operator's console operator subgoaling early enzyme early finish date early gene early start date early-type spiral

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