合成途径中，有两个主要的反应，即碳链的增长和去饱和作用。

There are mainly two reactions involved in the pathways, chain elongation and desaturation.

youdao

合成途径中，有两个主要的反应，即碳链的增长和去饱和作用。

There are mainly two reactions involved in the pathways, chain elongation and desaturation.

youdao