Cereals and carbohydrates had the smallest footprints, with each pound of food releasing only 3 lb of greenhouse gases and almost no nitrogen pollution.

谷物和碳水化合物的足迹最小，每磅食物只释放3磅温室气体，几乎没有氮污染。

youdao

In a Stanford press release, Cantwell says the nitrous oxide can heat an engine to almost 3, 000 degrees Fahrenheit and expel nitrogen and oxygen at 5, 000 feet per second.

Cant well教授在斯坦福出版的新闻稿中说，氧化氮能把发动机加热到华氏3,000度，排出氮气和氧气每秒钟5,000英尺。

youdao

Then also, nitrogen, 3 minus -- these are all going to be isoelectronic with neon.

然后还有，氮，负三价-,这些都是与氖原子等电子的。

youdao

- Then also, nitrogen, 3 minus -- these are all going to be isoelectronic with neon.

然后还有，氮，负三价-,这些都是与氖原子等电子的。

麻省理工公开课 - 化学原理课程节选

It's a sigma bond, - and it's going to be -- N2sp3 no. OK, it's going to be nitrogen 2 s p 3, because it's a nitrogen atom, 1s and then hydrogen 1 s.

它是sigma键，它是-,不，OK，它是，因为这是个氮原子，然后是氢。

麻省理工公开课 - 化学原理课程节选