1.
A planoconvex lens used to concentrate light.
凸透镜用来聚光的凸镜
2.
meniscus (shaped) lens
凹凸透镜，弯月形透镜
3.
Shaped like a biconvex lens.
双凸透镜状的形状像双凸透镜的
4.
A convex lens is used to concentrate rays of light.
凸透镜用于聚集光线。
5.
large convex lens produces image that is viewed through the eyepiece.
通过目镜观察物体图像的大的凸透镜。
6.
Just as a double convex lens enlarges, so a double concave lens reduces.
正象双凸透镜可以放大那样，双凹透镜也可以缩
7.
a single convex lens is used to produce an enlarged image.
能够产生放大图像的单个凸透镜。
8.
He focused the sun's rays on a paper with a burning-glass.
他用一面凸透镜把阳光聚焦在纸上。
9.
The Study of Measuring Convex lens Focal Distance with CCD;
用CCD测量凸透镜焦距实验的研究
10.
A mirror, lens, or combination of lenses used to gather light and direct it upon an object or through a projection lens.
聚光器用于聚光并将光引向某物体或通过一凸透镜组的镜子、透镜或透镜组
11.
Just as a double convex lens enlarges, so a double concave lens reduces
正象双凸透镜可以放大那样，双凹透镜也可以缩小。
12.
He focused the sun's ray on a piece of paper with a burning-glass.
他用一面凸透镜把阳光在纸上聚成焦点。
13.
embossed film
(带半圆凸透镜层的彩色电视录象用)浮雕影片
14.
Wearing lower degree convex lens can reduce incidence rate of myopia in primary school students.
配戴低度凸透镜可降低小学生近视的发生率。
15.
Numerical Study of Convex Lens Transform Property for Broadband Laser Beam;
凸透镜对宽带激光束变换特性的数值研究
16.
An Analysis of Netow Rings When in Touch with Level Convex Lens and Level Glass;
凸透镜与平板玻璃接触所现牛顿环的分析
17.
Error Analysis and Ways to Make fewer in Measuring Focal Distance of Convex Lens;
凸透镜焦距测量的误差分析和减小方法
18.
The Error Analysis in the Experiment of Newton Ring;
用牛顿环实验测量凸透镜曲率半径的误差分析