快门

Louis Daguerre in France made the first practical version of the silver camera, which is composed of two wooden boxes, insert a wooden box to another box in focus, shutter used as a lens cap, to control for more than 30 minutes of exposure time, can be taken a clear image.

1839年，法国的达盖尔制成了第一台实用的银版照相机，它是由两个木箱组成，把一个木箱插入另一个木箱中进行调焦，用镜头盖作为快门，来控制长达三十分钟的曝光时间，能拍摄出清晰的图像。

The research about the critical technique includes: developing the radiation-hard CCD sensitive to the X and EUV ray; implementing the design of CCD driving clock and signal readout electronic using CPLD; implementing shutter design which can realizing 1ms - 10s exposing time.

关键技术突破包括：完成X射线和极紫外波段都敏感的抗辐照型CCD技术设计，并利用CPLD实现了非规则像素阵列CCD的驱动时序和读取电子学电路设计和调试：完成1ms～10s宽动态范围快门装置设计和调试。

Eggshell china is a unique handicraft that has enjoyed great fame for a long time.

只要您按压住快门按钮，相机就连续拍摄。

Set f-number on 7,0, shutter speed on 45, and film speed on 50. And here we got.

把焦距设置成7.0，快门调到45，还有胶片速度50，在看一下。

I wanted ambient light to register, and I set the f-stop and shutter speed

高。我想要环境光曝光正确，因此我选择了相应的光圈和快门速度，并且通过观察相机的机

I wanted ambient light to register, and I set the f-stop and shutter speed to where I could see from my camera' s built-in meter that I would get ambient light to register.

我想要环境光曝光正确，因此我选择了相应的光圈和快门速度，并且通过观察相机的机内测光确保我的设置是正确的。

The flash exposure with the Canon - as far as I can see (although I might very well be wrong)- doesn't seem to take into account the exposure settings dialed in for ambient light, but instead measures just the flash exposure at the particular f-stop.

这两张照片对环境光的曝光差了一级。佳能闪灯的曝光—至少我感觉是这样，当然我也可能是错的—没有综合考虑环境光曝光的设置，只考虑了快门速度。

The program scans a folder tree and generates a statistical overview for a variety of cameravalues, including model, f-stop, focal length, flash used, exposure and others.

该软件扫描一个文件夹树并且生成一个包括型号，快门，焦距，闪存使用，曝光等在内的各种不同的照相机参数值的统计概要。

Closing the shutter reduces the exposure, allowing high-speed film to be used outdoors or allowing the lens to be opened to decrease depth of field or shooting at a selected f-stop.

关掉快门会减少曝光，这样可以用与户外高速摄影或用于打开镜头减少景深或用于有选择的设。

Personally, I don't like the S mode because it doesn't give control on the depth of field; moreover, if you select an excessively fast shutter speed and there is not enough light, it is easy to get underexposed photos, in particular with "slow" lenses e.g.

拿我来说，我不喜欢使用速度优先模式，因为这种模式不能控制景深；另外，你一旦选择了一个比较快速的快门速度但是现场并没有足够的光照的话，很容易导致曝光不足。

I am sure after a few weeks of adaptation and familiarization I will have no difficulty in functioning on a daily basis in an English speaking society or in participating fully in graduate studies.

在大学的三年的学习生活不仅给予我自身的充实，更重要的是磨练和培养了我较强的自觉能力和严谨，踏实的作风以及不怕困难的精神，对未来充满了信心！

As the first volcanoes erupted, one of the gases that bellowed out was steam.

在第一批火山喷发时，喷出的气体之一就是水蒸汽。