first eye lens 首侧复曲面
first electron lens 第一电子透镜 ; 阴极透镜 ; 初步近似
first cut linter focusing lens 第一级聚焦透镜
What was the first lens you bought for your DSLR?
你为自己的单反购买的第一个镜头是什么镜头?
The first lens group (G1) receives a light flux entering along a first optical axis (A1).
第一透镜组(G1)取入沿第一光轴(A1)入射的光束。
The first through fourth lenses are arranged sequentially from the object, and an aperture diaphragm is disposed on the object side of the first lens.
第一至第四透镜从物体顺序排列,孔径光阑置于第一透镜的物侧上。
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