So if we're talking about the third period, that starts with sodium and it goes all the way up to argon.

所以如果我们谈论第3个周期，它从钠开始,一直到氩。

麻省理工公开课 - 化学原理课程节选

s1 So for the fourth period, now we're into the 4 s 1 3d for potassium here. And what we notice when we get to the third element in 4s2 and the fourth period is 3d that we go 4 s 2 and then we're back to the 3 d's.

对于第四周期到现在我们来到钾的1,然后我们返回到,我们注意到当我们看到第三个元素,第四周期我们来到,然后我们返回到。

麻省理工公开课 - 化学原理课程节选

That has moved around a lot, but it got almost up to 60% in the post World War II period and now it's down to less than a third.

计算所得的百分率变动很大,二战后,它一度达到将近60%,现在又降到不到三分之一

耶鲁公开课 - 金融市场课程节选

Many of you won't be here the next day, that's what happens with shopping period, and then the third day we see how many folks we have. We do have, for those people who want to take it, a travaux diriges en francais, we have a section that's French speaking.

你们好多人明天估计就不来了,购物季就是这样,然后第三天我们就能看出,还剩多少人,我们倒是为,那些有需求的人准备了,法语授课的课程,有一章节课是法语讲的

耶鲁公开课 - 1871年后的法国课程节选

Just as I foreshadowed, if you look at the difference between the first and third quartile in the bond market -these are active returns over a ten-year period again ending June 30,2005 -and the fixed income market, the difference between first and third quartile is a half a percent per annum.

如我之前所示,如果观察,债券市场中的第一和第三个四分位数,四分位数即统计学中,把所有数值由小到大排列并分成四等份三个分割点位置分别就是三个四分位数 考虑十年期的主动型的收益,截止于2005年6月30日,在债券这个固定收益市场,第一和第三个四分位数,每年只差0.5%

耶鲁公开课 - 金融市场课程节选