Perfect optical system dose not be inhibited by physical conditions and every object point has ideal point image.
理想的光学系统是不受物理条件约束的，每个物点都成理想点像。
However, for the actual optical system, its point image become a speckle because of diffraction of light and aberration.
对于实际光学系统，由于光的衍射和像差，使所成的点像为一弥散斑。
Proponents point to features such as the terraced "beaches" shown in one image, which could conceivably have been left behind as a lake or ocean evaporated and the shoreline receded.
支持者们从一张照片里指出了一些特征，例如阶梯状的“海滩”；可以想象，随着湖泊或者海洋蒸发以及海岸线的后退，这些阶梯状的“海滩”可能会遗留下来。
Finally, online backup images of databases and table Spaces will include the set of log files necessary to restore and recover the backup image to a consistent point in time.
最后，数据库和表空间的在线备份镜像将包括一组日志文件，在将备份镜像恢复到某个一致的时间点时，这些文件是必需的。
Manipulating the data can also be used to slide the point of view of the camera around to produce a compelling simulation of a stereoscopic image, shallower but similar to 3d movies.
操作的数据也可以通过滑动相机周围的点产生一个引人注目的立体形象，有些粗糙，但类似3d的电影仿真。
After the text has been drawn on the image, put a thin black box around the text and draw a line from the bottom of the box to the associated data point.
当把文本绘制到图像上后，请用一个细黑框框起该文本，然后绘制一条从框的底部到相关数据点的直线。
Computer vision has even advanced to the point that it can perform Internet searches with an image, rather than key words, as a search term.
计算机视觉技术甚至进步到能让它通过图像来进行互联网的搜索，而不是使用搜索关键词。
To see the rendered image from the camera's point of view, you have to convert the 3d world to camera space by taking the camera position and orientation into account.
要从摄像机的观察点观察渲染后的图像，您必须考虑摄像机的位置和方位，将3d世界转换为摄像机空间。
From an insider's point of view, if a brand's most coveted goal is brand image, if agents simply undertake store expansion in the pursuit of greater profits, brand image will be hurt.
以内部人的观点，如果品牌最关注的目标是其品牌形象，如果代理商只是为了获得更大的利润进行门店扩张，品牌形象就会受到破坏。
A viewer can adjust the focus of an image at will simply by clicking on a point to bring it into sharp focus and blurring the rest of the photo.
一位观众可以随意的调整图像的重点，只需点击一个大家关注的焦点，而使得照片的其余部分模糊。
This allows showing the different trace elements in a point, and then the sample is scanned point by point to form a complete multi-element image of the cells.
这能帮助区分一点上的不同微量元素，然后通过点扫描得到细胞完整的多元素图像。
He added: 'There's no point getting pictures of a blank piece of sky full of stars, you need something in the foreground to lead people through the image.
他还说：“对着一片充满星星的天空拍摄是没有意义的，你需要某种前景，这样可以给人以穿过图像的立体感。”
A symmetrical shot with strong composition and a good point of interest can lead to a striking image – but without the strong point of interest it can be a little predictable.
一副牛逼作品也可以是强烈的对称构图加上一个好的兴趣点。但没有兴趣点则会变得略为晦涩。
Image above: the focal point of the cottage is the cast-iron spiral staircase, which we commissioned.
上图：铸铁楼梯是整座别墅的焦点，是我们自己定制的。
Additional things could include annotating an image to point out a problem or a question to be answered by a doctor at a central hospital.
其他工作可能包括为图片添加注释，指出问题或疑问，让中心医院的医生解答。
You can use your image viewer to look at the step1.pie.png graphic, but it won't be any more impressive than a regular pie chart at this point.
您可以使用图像查看器来查看 step1.pie.png图形，但是此时没有什么能够比一个常规饼图更令人印象深刻。
Converging lines (two or more lines coming from different parts of an image to a single point) can be all the more effective.
聚合线(两到多条来自不同部分、汇聚到一点的线)能更加有效。
The tool builds the configuration tasks into the image at this point, but they do not run until image deployment time.
工具在此时把配置任务构建到映像中，但是在部署映像之前并不运行它们。
It will simply serve as a single connection point to deliver the unified or single database image to the application.
它只是作为一个单一的连接点来使用，以便向应用程序提供统一的或单一的数据库镜像。
The image is recorded using an array of normal cameras, each of which views the object from a different point of view.
这个全息图是使用一系列常规的相机拍摄的，每个相机从不同的角度拍摄这个对象。
We often use an image or symbol to describe something as clearly as possible and thus make our point as effectively as possible.
我们经常会运用比喻和象征以便尽可能清晰地描述事物，因而可以尽可能有效地阐述我们的观点。
The first point of irony is that everyone who looks at the Time cover doesn't see others with whom they are supposed to be in direct exchange - what they see is a mirror-image of themselves.
首要的讽刺就在于，每一个看《时代》封面的人都无法看到与其进行直接交流的对象——他们看到的不过是自身的镜像而已。
The low vantage point gives the image dramatic emphasis, and the insect 's-eye view of the grass in the foreground creates an otherworldly appearance.
这种视点对画面形成了一种戏剧化的强调，而且前景以昆虫视角呈现的草给人以另一个世界的感觉。
If the village and church were going to be the focal point of my image I needed a shaft of sunlight to pop through the murky skies, bringing the scene to life.
如果这个村庄和教堂恰好是我照片的中心，那么，我需要这阴暗的天空中能投下一缕阳光，让这些景象都鲜活过来。
For example, the move effect knows a starting point and an ending point, and it calculates where it should put the image based on the percentage.
比如，移动特效知道起点和终点，可以根据这个百分比计算应该将图像放到何处。
When we are stripped down to a certain point, nothing leads anywhere anymore, hope and despair are equally groundless, and the whole of life can be summed up in an image.
我们所拥有的被渐次剥离，过了一个临界点后，一切都不再有章可循。没有希望的理由，也没有绝望的理由，整个人生都可以包纳在一幅图景中。
The point of Sky News, which loses money, is that it burnishes BSkyB's image, turning the broadcaster into something more respectable than a purveyor of football, films and American dramas.
收购亏损的天空新闻的意义在于为天空广播公司增光添彩，让广播公司比足球，电影和美国歌剧的承包商更受尊敬。
Once the image has been created, you can use it to restore files or an entire file system to a known point in time.
创建映像之后，可以使用它来将文件或整个文件系统还原到已知的时间点。
Airy disk brilliance (the brightness of a point-source stellar image) is proportional to the fourth power of aperture.
艾里斑的亮度(点光源恒星的图像亮度)正比于孔径尺寸的四次方。
Airy disk brilliance (the brightness of a point-source stellar image) is proportional to the fourth power of aperture.
艾里斑的亮度(点光源恒星的图像亮度)正比于孔径尺寸的四次方。
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