Easy to read and straight-forward, Understanding Exposure offers the basics of aperture, lighting and shutter speed, photography’s basic triumvirate, to beginning and intermediate photographers.

面向初级和中级水平的摄影师，《理解曝光》用简单易懂的文字介绍了光圈、进光量和快门速度这“摄影三角”的基本知识。

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There are some basic physical properties ofthe universe, such as the charge of the electron, the precise strength ofgravity, the speed of light, etc.

宇宙有一些基本的物理性质，比如电子的带电性、重力的精确大小、光速，等等。

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moreover, by means of computer, these basic data could be searched and analyzed so as to improve the speed and accuracy of decisions.

更进一步，通过使用计算机，这些基础数据能够能够被研究和分析为了提高决策的速度和准确性。

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At a basic DSL or cable modem speed, resolution is excellent, and the viewer can pause the movie or download a different film.

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"We have started the planning and development of Sansha, including basic infrastructure, at full speed, " Tan was quoted by state-run Xinhua News Agency (Chinese).

CNN: China to open disputed islands to tourism

"We have started the planning and development of Sansha, including basic infrastructure, at full speed, " Tan was quoted as saying by state-run Xinhua News Agency (Chinese).

CNN: China to open disputed islands to tourism