单词 | femtometer |
释义 | femtometer (once / 5909656 pages) n WORD FAMILY femtometer USAGE EXAMPLESPutting these techniques together gave an answer of about 0.8768 femtometer for the proton’s radius, just less than a quadrillionth of a meter. New York Times(Jul 12, 2010) The surprise was an answer that was 4 percent smaller, 0.84184 femtometer. New York Times(Jul 12, 2010) n a metric unit of length equal to one quadrillionth of a meter Syn|Hyper femtometre, fermi metric linear unit a linear unit of distance in metric terms |
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