Sentence 1: This was a series of nested polar scales , so that measurements in azimuth and elevation could be performed relative to the ecliptic directly in angle coordinates .
Sentence 2: This was a series of nested angular standards , so that measurements in azimuth and elevation could be done directly in polar coordinates relative to the ecliptic .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?