目镜

So even if you use one for rough alignment in Step 3, it is better to use a Cheshire eyepiece for the final adjustment.

所以即使你第3步调整的粗一些，我也推荐你使用Cheshire 目镜做最后的调节。

I had never seen this double cluster in Cassiopeia before. But instead of having to spend nights squinting through an eyepiece trying to catch a glimpse of it, Bob Fera has delivered it anyone who has a computer and an Internet connection.

我从来没有见过这个仙后座这个双星团，但不需要为了瞄上一眼就化整个晚上从目镜里斜视，Bob Fera把它带给了所有有一台电脑和Internet的人，并且是用他特有的精细风格！

I had never seen this double cluster in Cassiopeia before. But instead of having to spend nights squinting through an eyepiece trying to catch a glimpse of it, Bob Fera has delivered it anyone who has a computer and an Internet connection. And deliver it in fine style he has!

我从来没有见过这个仙后座这个双星系，但不需要为了瞄上一眼就化整个晚上从目镜里斜视，Bob Fera把它带给了所有有一台电脑和Internet的人，并且是用他特有的精细风格！

Even a careless momentary look through the eyepiece of field glasses or the telescope can do great harm to the eyes.

通过望远镜或双筒望远镜的目镜，即使对太阳只是漫不经心的一瞥，也会对眼睛造成严重的伤害。

An optical device, such as a pair of field glasses or opera glasses, designed for simultaneous use by both eyes and consisting of two small telescopes joined with a single focusing device.

双目镜由两个小望远镜和一个调焦设备组成的光学设备，如一副双筒望远镜或观剧用的小望远镜，设计为同时用双眼观看。

Then the scratches and spots on the field lens would be visible at the eye lens.

此时场镜上的划痕和小点会在接目镜中看见。

The particular functions and the impact to the systemic performance of the critical elements such as lighting system, grating, field lens and electronic ocular are analyzed.

对系统的关键性部件如照明系统、光栅、物镜和电子目镜的选用以及它们对系统性能的影响进行了分析。

There is a detectable amount of radial distortion but that is to be expected with an eyepiece of this type,(It would be interesting to use a field flattener and see the difference it makes), and there was also a very limited amount of lateral color present when looking at the moon and I do stress limited.

有一个检出量为径向畸变，但这种情况是可以预期的目镜这一类型(这将是很有意思的使用领域 flattener 看到差距使得)还有一个非常有限，横向色目前在看月亮，而我压力有限。

The origin of this color can be traced down to the negative lens of the objective and the first ocular lens. Both of them are made of SF3R, a special radiation resistant flint glass (here I have to correct my statement made in another review : The origin of the yellow color is, at least in the EDF, a radiation resistant glass).

这黄色的来源能追踪到物镜的负透镜和第一块目镜，这两个都是SF3R做的，一种特殊的能抗辐射的含铅玻璃（这里我纠正另一个评测中的观点：黄色的来源，至少在EDF中，是抗辐射玻璃）。

The ratio of the focal length of a lens or lens system to the effective diameter of its aperture.

光学仪器的目镜上的细线、圆点、十字型细线或金属丝组成的系统。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。