Tìm kiếm
Fresnel lens
01
lens composed of a number of small lenses arranged to make a lightweight lens of large diameter and short focal length
word family
fresnel lens
fresnel lens
Noun
Ví dụ
Từ Gần
Tìm kiếm
lens composed of a number of small lenses arranged to make a lightweight lens of large diameter and short focal length
word family
fresnel lens