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The central 60% of the field (radial) display stars that are point like, beyond that aberrations gradually increase.
在视场中间的60%星点成像不错,接近为一个点。
youdao
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The central 60% of the field (radial) display stars that are point like, beyond that aberrations gradually increase.
在视场中间的60%星点成像不错,接近为一个点。
youdao