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本文结合奥林巴斯ＢＨＭ３６３Ｕ大型摄影金相显微镜的具体结构，介绍了开发显微摄影标准放大倍数和大幅底片的试验原理和方法。
In this paper, Olympus BHM363U large photographic metallographic microscope with the specific structure, introduced the development of micro-photographic standard magnification and large film test principle and method.