"Currently,12 1/2 million people are unemployed, and that is a lot of pain.

VOA: standard.2009.03.10

So, once we figure out what our probability of backscattering is, we'll just raise that to the 1/2, and we'll multiply that by 12 . 20 centimeters.

所以一旦我们,知道了散射概率，我们开根号。

麻省理工公开课 - 化学原理课程节选

1 So, it's two times 3.12 plus four times 1.31, 6 all divided by six.

就是2*3。12+4*1。,最后再除以。

麻省理工公开课 - 固态化学导论课程节选

Right now, we have them scheduled at 9:00, 10:00, 11:00, 12:00, 1:00, and 2:00.

现在我们就安排他们分别在,九点，十点，十一点，十二点，一点，和两点。

麻省理工公开课 - 计算机科学及编程导论课程节选

2 The 2p is 1.31. The 2s is 3.12.

p轨道的能量是1。31，2s轨道的能量是3。

麻省理工公开课 - 固态化学导论课程节选