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。

youdao

Not long after Galileo saw the moon up close, inventors like Johannes Kepler, Isaac Newton and n. Cassegrain made a succession of major innovations in telescope design.

伽利略看到月球景象后不久，开普勒、牛顿、卡塞格伦都为望远镜的改进设计做出了很大贡献。

youdao

The 1950s saw the development of an explosive new music style: rock 'n 'roll.

五十年代见证了一种爆炸性新乐风的开展：摇滚乐。

youdao

"And again similar to what we saw in Baghdad in 2003 when the United Nations was targeted the U.N.has become a target for terrorism.

VOA: standard.2009.06.19

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

So if we're keeping n the same, we look and what we saw was that size actually decreases as we increase the value of l.

如果我们保持ｎ不变，我们看到随着ｌ值的,增大尺寸变小。

麻省理工公开课 - 化学原理课程节选

Carlton Cole then screamed for a penalty after tumbling under Chris Samba's challenge, while at the other end Steven N'Zonzi saw an effort well saved by Robert Green.

BBC: West Ham 1-1 Blackburn

Police say they want to hear from anyone who saw the green N-registration car in the Merthyr area prior to the crash, which happened near to the cemetery in Pant.

BBC: Lynsey Popp tribute after Pant, Merthyr fatal car crash

It has been since this began, particularly based on the devastation that we saw at the U.N. that had provided great assistance in security before the earthquake.

WHITEHOUSE: Press Briefing