He was doing experiments in a gas discharge tube.

实验是在一个气体放电管中进行的。

youdao

By the time he was ten, Edison was already doing his experiments in chemistry.

爱迪生十岁时，就已经开始做化学实验了。

youdao

By the time he was ten, Edison was already doing his experiments in Chemistry.

爱迪生十岁时，已经开始做化学实验了。

youdao

He was doing experiments in a gas discharge tube.

实验是在一个气体放电管中进行的。

麻省理工公开课 - 固态化学导论课程节选

The experiments he was doing were not about how to transfer television to the Web, but rather, here's the Web, here are these tools we've never had before, what can we do that's interesting with them?

WSJ: The Director & the Techie