He had a tube with electrodes potted in it filled with atomic hydrogen. And by applying a voltage, he was able to get the gas to glow.
他有一根装着电极的管子，里面充满了氢原子。通过施加电压，他能够使气体发光。
2
And so if he gets the voltage high enough, this gas discharge tube will glow.
如果管中的电压足够高的话，气体放电管将会发光燃烧。
3
Electric discharge lamp or vapor lamp: lighting device consisting of a transparent container within which a gas is energized by an applied voltage and made to glow.