The front curtain drops away, revealing the sensor behind, and allows the light to enter the camera, beginning the exposure.
前幕帘落下，后方的感光元件露出，光线进入相机，曝光开始。
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。
Search marketing can dramatically accelerate brand awareness, but getting exposure in the search results is just the beginning.
搜索营销可以大大加快品牌的知名度，但要在搜索结果中曝光仅仅是个开始。
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