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

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

Blood urea nitrogen and creatinine were determined on 1, 3, 5 days after CDDP treatment.

CDDP处理后，分别在第1、3和5天采血，测定血清尿素氮和肌酐。

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