柯林斯英汉双解大词典
sigma /ˈsɪɡmə/
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1.
N the 18th letter in the Greek alphabet (Σ, σ, or, when final, ς), a consonant, transliterated as S 希腊文字母的第十八个字母（Σ），辅音，相当于S
双语例句原声例句权威例句
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我哥哥宣誓加入Σ NU联谊会。
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The Six Sigma Black Belt should be able to compute the mean and standard deviation from a grouped frequency distribution.
六西格玛黑带应该能够计算出一个分组发生频次分布数据的均值和标准偏差。
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The set of all such strings form a sigma algebra.
所有这样的字符串的集合形成一个代数。
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This is because most fraternities and sororities are named after a series of Greek letters, such as Alpha Delta Pi or Sigma Phi.
VOA: special.2009.09.25
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So we can also name this orbital, and this orbital we're going to call sigma 1 s star.
我们也可以，给这个轨道命名。
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And so it has what? In contrast to the sigma, it has a nodal plane containing both nuclei.
这是什么，和sigma相反，它是包覆在核上的平面电子云，有一个界面。
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