Multiply by 2 and see what happens.

乘2，然后看看发生了什么。

youdao

I take the square root, 2 I multiply by two.

取平方根，乘以。

youdao

I am only counting in one direction, 2 so I have to multiply this whole thing by two because I have to count both directions.

因为我只是在一个方向上计数，所以我要把这些所有乘以，因为我们必须考虑到2个方向。

youdao

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

I am only counting in one direction, 2 so I have to multiply this whole thing by two because I have to count both directions.

因为我只是在一个方向上计数，所以我要把这些所有乘以,因为我们必须考虑到2个方向。

麻省理工公开课 - 固态化学导论课程节选

Well, Fahrenheit came along and thought, well, you know, 7-1/2, that's kind of silly; 22-1/2 that's, kind of silly So let's multiply everything by four.

然后华伦海特来了，他想，7。5，听起来有些犯傻;,22。5，那也够傻的,我们还是把所有的东西乘以四吧。

麻省理工公开课 - 热力学与动力学课程节选

If the label gives the sodium content, multiply by 2.5 to get the amount of salt.

BBC: NEWS | UK | Magazine | How do I know if I'm eating 6g of salt a day?

Multiply a 1 in 2 chance that Ohio picks the winner by a 1 in 2, 900 chance that each vote in that state is decisive and you get the 1 in 5, 800 chance.

FORBES: What Are the Odds That Your Vote Will Count?