1.
Study on Phase Retrieval Testing for Long-focus Optics
长焦距镜面的相位恢复检测技术研究
2.
Measurement of optical surface and foci of long focal length lens by CGH
计算全息法测量长焦透镜面形和焦距
3.
long focus lens
长焦距（望远）镜头
4.
This is a long focus lens.
这是个长焦距镜头。
5.
rear-controlled zoom lens
背面调整变焦距透镜
6.
best image plane of zoom lens
变焦距物镜的最佳像面
7.
image plane displacement of zoom lens
变焦距物镜像面位移
8.
The focal length differs with the thickness of the lens
焦距长底随透镜的厚度而变化。
9.
Measurement of Long Focal Length of Lens Utilizing Talbot Effect and Morie Technique;
利用泰伯—莫尔法的透镜长焦距测量
10.
variable focal length (cylindrical) lens
变焦(距)(圆柱)透镜
11.
Measurement for the Long Focus Length of Lens by Images of Moire Fringes
利用莫尔条纹的计算机图象测量长焦距透镜焦距
12.
autofocus zoom lens
自动聚焦变焦距镜头
13.
manual zoom lens
(镜头)手控可变焦距透镜
14.
Eyeglasses having trifocal lenses.
有三焦距镜片的眼镜
15.
A Method for Measuring Thermal Lens Focal Length of End-Pumped Nd:GdVO_4 Crystals
一种测量端面抽运Nd-GdVO_4晶体热透镜焦距的方法
16.
Focal length: The distance between the centre of a lens and its principal focus.
焦距:镜头中心与其主焦点的距离。
17.
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快速变焦距手术显微镜
18.
Don't forget to focus the lens.
别忘了调节镜头的焦距。