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convexo concave lens
meaning in Chinese
凸凹透镜
Related Words
convexo convexe
convexo plane
convexo concave
convexo convex
concave curvature
concave gratings
concave life
concave opening
threshing concave
concave refractor
convexly
convexo concave
convexo convex
convexo convexe
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