基础释义
例句
英英词典释义

福克斯词典 \ 英汉词典 \

sigma是什么意思？

sigma

[人名] 西格马，[地名] [菲律宾] 西格马；

相关单词 Sigmar

例句

Summations are almost invariably indicated ellipses instead of the more prevalent sigma notation. 在表示“连加”的式子中,几乎一成不变地使用省略号来代替更为流行的“∑”符号.

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英英词典释义

Noun
1. the 18th letter of the Greek alphabet

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