One evaluation has shown that 70% of the people who received the new glasses corrected their own vision at least as well, if not better, than a trained optometrist.

Well-informed analysts know that PPP calculations are a poor measure of a country's potential military base, but with the corrected China PPP statistics, the whole question is moot.

With these data, an anisotropy factor can be calculated, and the horizontal well log curves can be corrected.