The study of six sigma especially in medium and large firms is important because six sigma is today's quality equivalent to TQM in the past.

因为六西格玛在质量上相当于过去的TQM，因此六西格玛的研究十分重要，特别是在大中型企业中。

youdao

Sigma that is one PI orbital. There is one sigma, one PI and there is a second PI, and that is how we are getting the triple bond.

那是一个pi轨道，有一个，一个pi，还有第二个pi轨道，这就是我们如何得到三线态的。

youdao

All it is sigma 1 s, and then we have two electrons in it, so it's sigma 1 s squared.

所有的都是sigma1s，上面有两个电子，所以是sigma1s的平方。

youdao

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

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。

麻省理工公开课 - 化学原理课程节选

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。

麻省理工公开课 - 固态化学导论课程节选

The SIGMA DP1 Merrill is designed for wide angle images, the SIGMA DP2 Merrill is for standard range, while the DP3 Merrill rounds out the series with a camera for all shooting situations.

ENGADGET: Sigma DP3 Merrill packs a Foveon X3 sensor and a fixed F2.8, 75mm-equivalent lens

The SIGMA DP3 Merrill is equipped with a hot shoe, allowing use of the dedicated external flashgun EF-140 DG (optional) as well as SIGMA electronic flashguns for SD series such as EF-610 DG Super (optional) and EF-610 DG ST (optional).

ENGADGET: Sigma DP3 Merrill packs a Foveon X3 sensor and a fixed F2.8, 75mm-equivalent lens

Interest in Six Sigma meanwhile is an area where the United States scores highly.

FORBES: Why America Is Second Best With Its Innovation Culture