瞬间，是指事物或物体运动、变化、发展过程中某一转瞬之间与其空间分离的框架断面。我们要获取和再现这种生动精彩的瞬间断面的可视形象，只有借助于艺术的、科学的表现手法；诸如绘画、舞蹈戏剧、摄影、录像等等。那么，摄影就是事物发展，变化过程中瞬间表现的最佳手段和最 Momentary, refers to the things or objects, movement, change, the development of a transient moment and its spatial separation of the framework of the cross-section. We need to capture and reproduce the visual image of this vivid and wonderful momentous section, with the help of artistic and scientific means of expression; such as painting, dance drama, photography, video recording and so on. So, photography is the best means and the most instantaneous performance of things, changes in the process