The effect is further enhanced in this sharp image by galaxies that lie beyond the gorgeous island universe.
在这张图像中位于这片华丽的宇宙岛后侧的星系更增强了这种效应。
The sharp image shows stunning features in the galaxy's face-on disk of stars and dust along with background galaxies, some visible right through M101 itself.
这张高清图片展现了这个星系壮观的的恒星与星尘盘的正面特征，背景上还有这一些星系，有些还能透过M101 看到。
The lens focuses light rays on the retina - the layer of light-sensing cells lining the back of the eye - to produce a sharp image.
晶状体将光线聚焦于视网膜(排列在眼底的一层光敏细胞)来产生清晰的视觉影像。
Focal plane: The plane where light entering a lens forms a sharp image.
焦面：光线经过镜头后形成清晰影象的平面。
Image combination convolves any number of planes of focus into a single sharp image. The image combination feature is particularly useful for thick specimens.
图像组合可将任何数目的焦平面卷积成一个单一的清晰图像，图像组合特征尤其对较厚的标本有用。
Image combination convolves any number of planes of focus into a single sharp image. The image combination feature is particularly useful for thick specimens.
图像组合可将任何数目的焦平面卷积成一个单一的清晰图像，图像组合特征尤其对较厚的标本有用。
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