联想制造出了它认为是工程师、专业摄影师及CAD设计师的终极笔记本产品。
Lenovo has built what it considers to be the ultimate laptop for engineers, photo professionals, and CAD designers.
本文介绍床边摄影曝光延时指示灯的制作电路设计及工作原理。
This paper introduces the circuit design and working principle of bedside photography exposure delayed indicator.
本文讨论了散斑摄影条纹图的噪声来源及模型，设计合适的数字滤波器。
The noise sources and model in speckle photography fringe pattern is discussed and a noise filter for this model is designed.
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