有什么区别光学和数码变焦？
其光学和数码变焦一起工作，让您42x扩展变焦，你更接近你的焦点。
Its optical and digital zoom works together to give you 42x extended zoom to get you closer to your focal point.
利用光学显微镜和数码相机对凝固试样的宏观及微观组织进行观察。
The macrostructure and microstructure of the solidified samples was observed by digital camera and optical microscopy, respectively.
利用光学显微镜和数码相机对凝固试样的宏观及微观组织进行观察。
The macrostructure and microstructure of the solidified samples was observed by digital camera and optical microscopy, respectively.
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