“surd”的概念、定义、翻译、参考文献-科学参考

单词	surd
释义	surd Physics A quantity that cannot be expressed as a rational number. It consists of the root of an arithmetic member (e.g. √3), which cannot be exactly determined, or the sum or difference of such roots. Mathematics An irrational number in the form of a root of some number (such as $\sqrt{5}$ , $\sqrt[3]{2}$ or 4^2/3) or a numerical expression involving such numbers.
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