We decided to try another reducing agent, vitamin C.

我们决定试试另种还原——命 C。

We saw that just like the other reducing agent, it in combination with isoniazid sterilized the culture.

我们看到它跟另种还原相同，跟异烟肼道将这些细胞灭活。

The important thing is that developers include reducing agents: chemicals that generally donate electrons to other compounds during a chemical reaction.

重点是显影里包含还原，它能在化学反应中给其化合物提供电子。

Jacobs was studying whether the TB drug isoniazid was being inactivated by the presence of a particular amino acid, cysteine, which in chemical terms acts as a reducing agent, by donating electrons.

Jacobs 之前直研究为何肺结核药物异烟肼会被氨基酸和半胱氨酸灭活，而异烟肼在化学反应中通过失电子，起到还原的作用。