sigma
sigma 英 ['sɪgmə] 美 ['sɪɡmə]
n. 希腊文第十八个字母
名词复数:sigmas
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- n. 希腊文第十八个字母
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1. And a sigma bond forms any time you have two orbitals coming together and interacting on that internuclear axis.
当你把两个轨道合在一起,并在核间轴上有相互作用时,就形成了sigma键。
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2. Another thing I want to point out about every sigma orbital that you see, and it will make more sense when we contrast it with pi orbitals later.
另外一个我要指出的事情就是,关于每个sigma轨道你能看到,当我们把它和π轨道对比的时候会看的更清楚。
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3. It is the basis for the Pareto diagram, one of the key tools used in total quality control and Six sigma.
它是帕雷托图表的基础，是一个用在全面质量控制和六标准差中的关键工具。
- sigma 18th letter of the Greek alphabet, corresponding to Latin S, a metathesis of Hebrew samekh. In uncial writing, shaped like an S or a C.
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