名词中文翻译
中文翻译：环序数
同义词：
['circular number', 'cyclotomic number']
例句：
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1. The cyclotomic number of the sequence is 20.
这个序列的环序数是20。
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2. In mathematics, the cyclotomic number of a polynomial is its degree.
在数学中，多项式的环序数等于其度。
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3. The cyclotomic number of the sequence can be found by calculating the sum of the first n terms.
通过计算前n项的和，可以找出序列的环序数。