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Listen to native speakers pronounce “astigmatism” in real conversational contexts with synchronized timestamps and subtitles.
atmospheric motion. The atmospheres introduces defocus.It introduces astigmatism, coma. And here are you have imperfect wavefronts coming in from the -- because the atmosphere has distorted them.The wavefront censor is like going to a optometrist. It says you have this much astigmatism, this much coma, and it rapidly changes the shape of the mirror --
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