英语词汇“SI unit”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-新都网

单词	SI unit
释义	Word Frequency SI unit noun any of the units adopted for international use under the Système International d'Unités, now employed forall scientific and most technical purposes. There are seven fundamental units: the metre, kilogram, second, ampere, kelvin, candela, and mole; and two supplementary units: the radian and the steradian. All other units are derived by multiplication or division of these units without the use of numerical factors
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英语词典包含233703条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。