Here's a wordy sentence:
The magnetic field at this stage is parallel to the magnetic field at the first stage, but the intensity of the magnetic field at this stage can be lower than the intensity of the magnetic field at the first stage.
This sentence is wordy due to a lot of noun repetition. Can I simply reword this sentence into:
The magnetic field at this stage is parallel to that at the first stage, but the intensity of the magnetic field at this stage can be lower than that at the first stage.
I know that in some comparisons we can use "that" to avoid noun repetition, like "The mass of the earth is much larger than that of the moon". But I am not sure whether this technique can be applied to other circumstances like the example here.