目的探讨变焦放大胃镜在诊断和发现胃黏膜糜烂性病变中的作用。
Objective To investigate the function of the new magnifying endoscopy in the diagnosis of gastric mucosal erosion in the stomach.
数码变焦是不同的，指的是数码放大图像。
Digital zoom is different, and refers to the digital magnification of an image.
不同于普通的数码变焦，但没有达到退化图像放大。
Unlike the regular digital zoom, it achieves zooming without image degradation.
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