英语词汇base unit怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	base unit
释义	base unit noun a fundamental unit that is defined arbitrarily and not by combinations of other units. The base units of the SI system are the metre, kilogram, second, ampere, kelvin, mole, and candela. 基本单位。
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