| 单词 | radical sign |
| 释义 | radical sign【计】 根号 radical sign radical sign n.Mathematics （名词）【数学】 1. The sign &S{Ö} 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&S{Ö}，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2. 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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