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Indicators on power line You Should Know

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An additional usually used optical surface will be the side of the cylinder. This kind of surfaces have power only inside the meridian perpendicular on the cylinder axis. Cylindrical lenses are for that reason applied where ever it is actually desired to change the magnification from a single meridian to https://power-line32974.blogolenta.com/26768290/details-fiction-and-same-day-glasses-near-me

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