| 单词 | SI unit |
| 释义 | SI unit (extremely rare) n WORD FAMILY SI unit USAGE EXAMPLESIn the International System, the SI unit of speed is the metre per second. New York Times(Sep 22, 2016) The kilogram is the only SI unit still based on a physical object. Nature(Oct 13, 2015) n a complete metric system of units of measurement for scientists; fundamental quantities are length (meter) and mass (kilogram) and time (second) and electric current (ampere) and temperature (kelvin) and amount of matter (mole) and luminous intensity (candela) Syn|Hyper International System, International System of Units, SI, SI system, Systeme International, Systeme International d'Unites metric system a decimal system of weights and measures based on the meter and the kilogram and the second |
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英语词典包含147318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。