- Color distortion in an image produced by a lens, caused by the inability of the lens to bring the various colors of light to focus at a single point.色像差：由透镜成像造成的色彩畸变，因为透镜不能将各种色光聚焦在一点上
- Clarendon
- Clarendon College
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- Clarion University of Pennsylvania
- Clarion University of Pennsylvania-Venango Campus
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- Clark
- Clark Atlanta University
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