在我心目中，我认为在有着众多高质量的变焦镜头时使用“定焦”镜头是无意义的事情。
In my mind, it was pointless having a "fixed" lens when there were so many good quality zoom lenses around.
当你继续研究比较昂贵的变焦镜头时，你会发现它们有着恒定的光圈。
As you move onto the more expensive zoom lenses, they maintain a constant aperture.
你不让我在瞄准镜头时用光学变焦，而你也不能边拍照边聚焦。
You won't let me use the optical zoom while I'm shooting video; in fact, you can't refocus while shooting video, either.
如果你是出差使用并且想很快就把投影机架起来演示的话，关闭此功能可以无视镜头的变焦位置，从而可以节省一点时间。
If you are on the road and trying to get your projector set up in a hurry, this removes any doubt about the current position of the zoom lens, which can save you a few seconds.
给它装上胶卷，使用带自动调焦、自动闪光的变焦镜头，然后，当操作完毕时，回转胶卷。
It loads the film, has a zoom lens with autofocus, autoflash, and winds the film back when finished.
小波变换具有良好的时频局部性，具有变焦距的特点，对故障信号中的奇异点能够准确识别，是论文中应用的主要分析方法。
Having good time-frequency localization character, and correctly identifying singularity point in fault signal, Wavelet is the main analysis method in this paper.
从小波变换的基本概念出发，简要介绍了小波变换在信号时-频分析中的变焦特性。
From the basic conception of wavelet transformation, we discuss briefly the zooming characteristics of wavelet transformation in time-frequency domain analysis in this paper.
采用该设计方法使得在确定变焦镜头的初始结构时，不但步骤简化，而且操作简单方便。
With this design method, not only the determination procedure of the initial constitution of a zoom lens is simplified, but also the operation is simple and convenient.
一般说，数码相机的变焦能力时另一个关键的卖点。
The zoom capability of digital cameras is typically another key selling point.
为了寻找新的变倍补偿方式并降低设计变焦距系统时对经验的过分依赖，提出了一种光焦度分配及变焦补偿方法。
In order to arrive a new compensation mode that reduces the dependence on design experience for a zoom lens, a way for power allocation and compensation is proposed.
当你在拍摄视频时使用光学变焦镜头，这款相机的优点就体现无遗。
This camera shines when you use the optical-zoom lens while shooting video.
当你在拍摄视频时使用光学变焦镜头，这款相机的优点就体现无遗。
This camera shines when you use the optical-zoom lens while shooting video.
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