1.
Shaped like a biconvex lens.
双凸透镜状的形状像双凸透镜的
2.
The principal points of a thin lens coincide at the center of the lens.
薄透镜的两个主点与透镜中心相重合。
3.
A NEW MIGRO-GOLLIMATING LENS--FRESNEL LENS DESIGN
一种新型微准直透镜——菲涅耳透镜的设计
4.
aberration of the concave mirror is reduced by a meniscus lens.
用半月板镜头减少凹透镜的过失。
5.
A rotating device holding various lenses, as for a microscope, allowing easy switching from one lens to another.
透镜旋转盘一种装有各种透镜的可旋转装置，如显微镜上的，可以使转换透镜变得很容易
6.
A planoconvex lens used to concentrate light.
凸透镜用来聚光的凸镜
7.
Any of the lenses, prisms, or mirrors of an optical instrument.
光学镜光学仪器的透镜、棱镜或平面镜
8.
The lens or lens group closest to the eye in an optical instrument;an ocular.
目镜光学仪器中靠近眼睛的透镜或透镜组；窥孔
9.
A single lens in a pair of glasses; a monocle.
单片眼镜一对眼镜片中的一个单透镜；单片眼镜
10.
servo control of lensiris
透镜光阑的伺服控制
11.
a 35-millimeter lens cap
35 毫米的透视镜盖
12.
large concave mirror produces image that is magnified by the eyepiece.
由目镜产生放大图像的大的凹透镜。
13.
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。
14.
The lens through which we view the image is called the eyepiece lens.
我们用于观察象的透镜称为目镜。
15.
I stared at the glasses that looked like swimming goggles with rose-coloured lenses.
我盯着这副像是护目镜的玫瑰色透镜。
16.
A lens made of such quartz.
水晶透镜由这种石英制成的镜片
17.
He focuses the lens of a microscope.
他调整显微镜的透镜以定焦点。
18.
All three of them use mirror, not lenses at the front.
这三台望远镜前部用的都是曲面镜而不是透镜。