1) identical element
相同元素
1.
Identical elements are divided into r disordered groups(in each of which there is at least one element), Sum of all different grouping schemes is called identical elements grouping number,Signed asM.
n个相同元素分成r(r相同元素的分组数,记作M(n,r)。
3) IF-AND-ONLY-IF element
等同元素
4) isotopic element
同位(元)素
5) identity element
同一元素
补充资料:相同
1.彼此无差异。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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