英语语法分析

The photochemical reactions transform the light into electrical impulses.

光化学反应使光变为电脉冲。

《牛津词典》

Au nanoparticles were prepared by photochemical methods.

用光化学方法制备金纳米颗粒。

Turns out that light is needed, it's a photochemical reaction.

这个分解反应需要光，是一个光化学反应。