And it's not only very cool chemistry, because as a bioinorganic chemist, nitrogen fixation is one of my favorite fixations, if you will, since you need iron and sometimes vanadium or molybdenum to accomplish that biochemically.

这不仅是非常酷的化，作一名生物无机化家， 氮固定是我最喜欢的研究方之一，实现这一生化过程需要铁， 有时还需要钒或钼。

The drop in temperature was determined by analysing the ratio of Vanadium 1 and Iron 1 spectral lines, which had increased by a factor of 1.9.

温度下降是通过分析钒I和铁I谱线的比例得出的，该比例增加了1.9倍。