1.〔物〕目镜
2.眼罩
1.the glass part that you put your eye against in a microscope or telescope
1.The restricted nature of the small eyepiece was also mentioned, and the unstable nature of the graticule was a drawback.
小目镜的固有缺陷所带来的限制也同样被提及，分划天生不牢固是个缺点。
2.The right for the standard color, optical eyepiece with light regulation and focusing ability, easy to use.
其右边的为标准色颜色，光学目镜具有光线调节和调焦能力，使用方便。
3.The true field of view depends on the linear scale of that field stop, as determined by the magnification of the eyepiece in that telescope.
有效视场的大小与视场光阑存在线形关系，同时也受由主镜、目镜组成的放大倍率的影响。
4.If the screen is so far away from the eyepiece that the camera can be placed between .
如果投影屏距目镜很远，照相机可放在两者之间。
5.To determine power, pide the focal length of the telescope (in mm) by the focal length of the eyepiece (in mm).
将望远镜的焦距（单位：mm）除以目镜的焦距（单位：mm），就可以得到望远镜的放大率。
6.On Deep-sky objects, the eyepiece continued to do quite well, showing many faint stars in open clusters.
在观测深空天体时，它仍然有很出色的表现，它分解出了许多疏散星团中暗弱的星点。
7.As often seen through an astronomical telescope eyepiece, the planet's orientation is inverted, with Mars' north polar cap at the bottom.
由于往往是通过天文望远镜的目镜拍摄，火星的方向是颠倒的，行星的北极冠在下面。
8.The exit pupil of a telescope is the circular beam of light that leaves the eyepiece being used and is measured in mm.
望远镜的出射光瞳是指射出目镜的圆形光束的直径，单位是mm。
9.Or, you can calculate the exit pupil by piding the focal length of the eyepiece (in mm) by the focal ratio of the telescope.
或者，你还可以将目镜的焦距除以望远镜的焦比来得到出瞳尺寸。
10.Having fine threads across the field of view for measuring small distances , as in the eyepiece of a telescope .
视域里画有丝纹的有用于测量小距离的通过视野的细线的，如在望远镜的目镜片中。