与"spectacle step lenses"相近的词条

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• spectacle making machine
• spectacle plane
• spectacle spherical lenses
• spectacle sphero-cylindrical lenses
• spectacle spherocylindrical lenses
• spectacle step lenses
• spectacle symmetrical camera lenses
• spectacle taking lenses
• spectacle telephotographic lenses
• spectacle topogon lenses
• spectacle trifocal lenses
• spectacle vari-focus lenses
• spectacle wide-angle lenses
• spectacle wide-angle object lenses
• spectacle wide-aperture lenses
• spectacle zoom lenses

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