1.
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
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.
variable focal length (cylindrical) lens
变焦(距)(圆柱)透镜
4.
The focal length differs with the thickness of the lens
焦距长底随透镜的厚度而变化。
5.
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
6.
manual zoom lens
(镜头)手控可变焦距透镜
7.
long focus lens
长焦距（望远）镜头
8.
rear-controlled zoom lens
背面调整变焦距透镜
9.
short focal length (high aperture) lens
短焦距(大孔径)透镜
10.
This is a long focus lens.
这是个长焦距镜头。
11.
(physiology) the automatic adjustment in focal length of the lens of the eye.
（生理学）用眼的透镜来自动调节焦距。
12.
The Study of Measuring Convex lens Focal Distance with CCD;
用CCD测量凸透镜焦距实验的研究
13.
Further study on thin-lens focal length measurement experiment;
再议对薄透镜焦距测定的进一步研究
14.
Improvement on a Device in the Experiment of the Measurement of the Thin Lens Focallength;
“薄透镜焦距的测定”实验装置的改进
15.
Research on Focal Depth in the Experiment of Thin Lens' Focal Length Measurement
薄透镜焦距测量实验中焦深问题的研究
16.
They have a focal length, and where an image is formed depends on a combination of the focal length and the distance between the object and the lens.
透镜有焦距，而影像形成的位置，取决于焦距及物体与透镜距离的组合。
17.
The focal length of the conelensing lens should be such that the image of the source just fills the projecting lens.
聚光透镜的焦距应使光源的像正好照满放映透镜。
18.
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