You can't put it under a fume hood — it'll eat the fume hood.

你也不能把它放在实验室通风柜下，它会吃了通风柜。

This baby here is a fume hood.

这个宝贝是通风柜。

So we’re mixing these very carefully, in the fume hood, just in case the chemistry starts before we want it to.

所以我们在通风橱里非常小心地混合这些，以防化学反应在我们想要的时候开始。