“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	memory gap memory guard memory hierarchy memory lockout register memory management memory map memory map list memory mapping memory overlay memory port memory power memory print memory printout memory protect memory protection memory-reference instruction memory register memory search routine memory-segmentation control memory sniffer memory storage memory switch memory trace memory tube memory twist

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