福克斯词典 \

英汉例句

\ Sigma的例句（Sigma在句子中的用法）

Sigma的例句（Sigma在句子中的用法）

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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