金相学：研究金属与合金组织结构的学科，特别指采用显微镜和X射线衍射技术进行的这类研究。
Metallography: Study of the structure of metals and alloys, particularly using microscopic and X-ray diffraction techniques.
金相学是用金相显微镜和电子显微镜对金属和合金的显微结构的研究。
Metallography is the study of the microstructure of metals and alloys by means of the metallurgical microscope and the electron microscope.
金相学，金属结构学以金属与合金结构为研究对象的学科，尤指用光学和电子显微镜使用。
The study of the structure of metals and alloys, especially by optical and electron microscopy and X-ray diffraction.
经过金相学处理后，样品被放在光学显微镜下，对其显微结构进行详细研究以分析实际制备后的涂层的质量和缺陷。
After metallographic preparation, microstructure of prepared coatings is analysed under an optical microscope to investigate the quality of fabricated coating.
经过金相学处理后，样品被放在光学显微镜下，对其显微结构进行详细研究以分析实际制备后的涂层的质量和缺陷。
After metallographic preparation, microstructure of prepared coatings is analysed under an optical microscope to investigate the quality of fabricated coating.
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