The spectrum would look like this, and you'd always see this line spectrum from a heated hydrogen cloud or a compound that contains hydrogen.

光谱看起来像这样，你总是会从加热的氢云或含氢化合物中看到这条线谱。

The gas will emit a line spectrum, a distinct pattern of lines at certain wavelengths that correspond to the elemental composition of the cloud – in this case, hydrogen.

这种气体会发出线谱，一种在特定波长上的独特线条图案，对应于云的元素组成——在这种情况下是氢。