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镜顶焦距 镜顶焦距
vertexfocallength  detail>>
镜顶焦距
vertex focal length vertex formulas  detail>>
后顶焦距,后焦距
back focal distance posterior vertex focal distance  detail>>
前焦距,前顶焦距
anterior vertex focal distance front focal distance  detail>>
前顶焦距
front vertex distance front vertex focal distance frontvertexdistancefvd  detail>>
镜顶
vertex ◇镜顶屈光度 vertex power; vertex diopter; vertex dioptric power  detail>>
变焦距镜头
objective with variable focal length variable focus lens varifocal le zoom lens ...  detail>>
长焦距镜头
long focal lengh le es long focal lengh lenses long focus lens long focus-length lens...  detail>>
短焦距镜
short focus mirror  detail>>
可变焦距镜
variable focal length mirror  detail>>
中焦距镜头
medium focal length lens  detail>>
可变焦距镜头
variable-focal-length lens varifocal lens zoom lens  detail>>
透镜顶
vertex of lens  detail>>
焦距
[光学] focal distance; focal length  短语和例子   调焦距 focalize; 焦距计 focometer; focimete...  detail>>
变焦距镜头系统
zoomar  detail>>
超近变焦距镜头
macro zoom lens  detail>>
高倍率变焦距镜头
high ratio zoom lens  detail>>