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单词 radical sign
释义 radical signn.Mathematics(名词)【数学】
    1. The sign √ placed before a quantity, indicating extraction of the root designated by a raised integer. When extracting a square root, the raised integer is customarily omitted.根号:置于某一数之前的符号√,用一个被提高的整数表示取其根。开平方根时,这个整数习惯被省略
    1. The radical sign together with a horizontal bar extending from its top to the end of the expression from which a root is to be extracted.根号:根号与一条水平横线,从开根的表达式开头延伸到结尾
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