As transistors get smaller, however, laying down n-type and p-type materials in proximity gets harder, thanks once again to fluctuations in the concentrations of dopants.

然而，晶体管越小，制造PN结的难度就越大，这也是受到了掺入元素浓度波动的影响。

youdao

North Korea says attempts to shoot down its rocket will be an act of war, and that any additional U.N.

VOA: standard.2009.03.27

So, for example, down here I wrote that it was n 2 and that it was h 2, but when I re-wrote the molecules up here, you saw that it's an h h single bond where it's a nitrogen-nitrogen triple bond.

比如，在这下面我写的是氮分子2,而这个是氢分子，但我在上面把这些分子的形式改写了，大家可以看到,这是一个氢与氢之间的单键，含一个氮与氮之间的三键。

麻省理工公开课 - 化学原理课程节选

Absorption is just the opposite of emission, so instead of starting at a high energy level and dropping down, when we absorb light we start low and we absorb energy to bring ourselves up to an n final that's higher.

吸收就是发射的逆过程,与从一个高能量到低能量不同，当吸收光时，我们从低能量开始,吸收能量到一个更高的能量。

麻省理工公开课 - 化学原理课程节选

And on the stroke of half time the Latics were denied a penalty after Vidic hauled down N'Zogbia but Wigan's appeals were waved away by referee Martin Atkinson.

BBC: Man Utd 2-0 Wigan

Do the right thing for America-let dollars sprint from old assets to new ones at the speed of light. n Bill Gates, chairman and CEO of Microsoft: Don't let the bozos get you down. n Jim Barksdale, CEO of Netscape: Be kind to yourself in your Mississippi retirement years.

FORBES: Digital rules

Maynor Figueroa rifled a shot wide for Wigan before Liam Ridgewell headed wide at the other end, and Foster saved low down after N'Zogbia tried his luck.

BBC: Birmingham 0-0 Wigan