PanLinx
普通话
cmn-000
凹凸透镜
English
eng-000
concave-convex lens
English
eng-000
concavo convex lens
English
eng-000
concavo-convex lens
English
eng-000
meniscus
English
eng-000
meniscus lens
English
eng-000
periscopic lens
English
eng-000
positive meniscus
PanLex
