目镜

Both are delivered with a nice leather case, leather rain-guard for the oculars, yellow filters and instruction manual in Chinese language.

整个包装包括一个精致的牛皮盒、牛皮目镜盖、黄色滤光镜以及中文说明和使用手册。

As can be verified on this list , the first of the 50 mm models, the 7x50, appeared in 1956, followed by the 8x50 and 10x50 in 1957 (the 7x50 B/GA is, with few modifications and with individually focused oculars, still in production).

在这个单子上可看到，第一款50mm镜子，7x50诞生于1956，后面跟着8x50和10x50诞生于1957年（7x50 B/GA，只有很小的改动，目镜独立调焦类型现在仍在生产）。

But wide angle oculars with long focal lengths have large field lenses, which require large prisms to be illuminated to the edges of the field, and this leads to an expensive and bulky instrument.

但宽视野又长焦距的目镜含有广角镜片，这需要大棱镜照亮视场边缘，导致价格昂贵和体积巨大。

Since today's trend goes towards low weight and compact binoculars, optical designers have become reluctant to offer wide fields of view which require larger prisms and expensive oculars with additional lens elements but: Check the No.

当前的趋势是低重量更紧凑的镜子，光学设计师不愿意提供大视场，这需要需要更大棱镜和更贵的需要增加镜片个数的目镜（但，核对 collected wisdoms 的第九条）。

Further features include spectacle-friendly oculars, twist-up eye-cups and a central focuser.

更多的特点包括能适合眼镜的的目镜，旋升眼罩，中心调焦。

Finally, oculars with narrow apparent fields of view can be of simpler construction than wide angle binoculars (e.g. 3 lens element reverse Kellner instead of 5 lens element Erfle), are therefore cheaper, provide a better light transmission and are less prone to ghost images, because they contain less air-to-glass surfaces.

最后，小视场目镜也可以比广角望远镜结构上更简单（如Kellner的3片式代替Erfle的5片式），也因此更便宜，提供了更好的透光性，因为减少了玻璃表面，也减少了产生鬼影可能。

With its thick rubber armor, its large oculars with long eye-relief (suitable for use with gas-mask) and the eye catching window of its infrared detector re-charger, the DF had become the classical example of a full fledged military binocular, the blueprint of later 7x40 clones which adopted the same design philosophy.

身披厚厚的橡胶，长出瞳距离的大目镜和用于红外观测的受光窗，DF成为了军用望远镜全能地典型，后来的7x40望远镜的蓝图基于相同的设计这里克隆了该镜。

The BPO is produced at KOMZ (Kazansky Optiko-Mekhanichesky Zavod) in the Autonomous Republic of Tatars.'B' stands for binocular,'P' for Porro prism, and 'O' stands for individual focus oculars.

BPO是位于Autonomous Republic of Tatars 的KOMZ (Kazansky Optiko-Mekhanichesky Zavod)生产的。B表示双筒望远镜，P表示保罗棱镜，O表示目镜分别调焦。

For low-power viewing of large objects, or to use your telescope as a low-power finder, you will want an eyepiece that delivers close to the maximum possible true field of view (note that for 1.25" eyepieces, the maximum field stop diameter is 27mm; for 2" eyepieces, it's 46mm).

低倍观察一个大目标，或利用你的望远镜来进行搜寻，你将需要一个尽可能接近最大实际视场的目镜。

In the next list I have summarized the appreciations of experienced amateurs about some of the most used eyepieces.

他们的分析并没有说明目镜的观测环境，镜子的焦比，以及是否使用巴罗镜。

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。