单词 | exametre |
释义 | > as lemmasexametre Used in the names of units of measurement to denote a factor of 1018 (one million million million; a quintillion), as exabyte, exametre, etc. Symbol E. ΚΠ 1975 Physics Bull. Mar. 105/1 The Committee [sc. the International Committee of Weights and Measures (CIPM)] also agreed to recommend that the 15th and 18th powers of 10 be assigned the names ‘peta’ (symbol P) and ‘exa’ (symbol E) respectively. 1987 Computer Oct. 65/3 Now we can address an immense amount of memory (four gigabytes) with only a few (in this case, 32) lines and a prodigious amount of memory (16 exabytes, exa = 1018) with only 64 lines. 1997 Data Communications Internat. 21 Oct. 97/2 Those on the leading edge of research already are throwing around some much larger figures, like exabit (1018 bits), zettabit (1021), and yottabit(1024). 2007 S. Eckleben Bang!!! (ed. 3) ii. 88 Earthlings have defined other units as well, such as..the parsec (about 3x1018 metres or 3 exametres). 2008 Columbia Journalism Rev. Nov.–Dec. 30/2 In 2006 alone, the world produced 161 exabytes of digital data, the equivalent of three million times the information contained in all the books ever written. < as lemmas |
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