Plus, these particles are ionized so they don't absorb the light like the neutral hydrogen gas.

另外，这些粒子被电离， 因此它们不会像中性氢气那样吸收光。

Adding all of that neutral hydrogen gas into our baryon budget brings us almost to 50 percent.

将所有这些中性氢气加到我们的重子预算中，使我们几乎达到 50%。