1.The fracture reason of high temperature fixture was analyzed by means of metallographic examination, SEM and chemical composition analysis.
采用金相检验、扫描电镜观察和化学成分分析等方法对万能材料试验机高温卡具断裂原因进行分析。
2.The surface cracks on steel sheet DB685 was analyzed by metallographic microscope and scanning electron microscope.
用金相显微镜和扫描电镜分析方法，对DB685钢板表面裂纹进行分析。
3.The heat treating of the cold precision forging gear is researched by experimental and metallographic analysis method.
采用试验和金相分析方法对冷精锻直齿圆柱齿轮的锻后热处理情况进行了研究。
4.By means of metallographic, energy spectrum analysis, and hardness tests, the fracture reason of the die was studied.
采用能谱分析、金相检验和硬度测试等方法，对模具的断裂原因进行了分析。
5.Causes of surface black spot and cracks of sponge clamp were analyzed by means of appearance and metallographic observation.
采用宏观和微观组织观察，分析了海绵钳表面黑斑及开裂的原因。
6.The mechanisms were analyzed and discussed by metallographic observation and transmission microscope observation of the microstructure.
结合金相组织和透射电镜组织观察，对影响机理进行了分析和讨论。
7.electron metallographic analysis of cracks of a certain steam generator tube was made by electron microscope.
用电子显微镜对该蒸汽发生器传热管管束裂纹进行断口电子金相分析。
8.Surface crack on teeth clamp was studied by means of macroscopic and metallographic examination.
采用外观和金相检验等方法对牙钳表面裂纹进行了分析。
9.Metallographic microscope is suitable for research in metallography, metallurgy laboratory professionals.
特点Features；金相显微镜适用于金相学、冶金学专业实验室的研究。
10.The macro, chemical and metallographic analysis have been performed on the cracking failures of reformer tube for hydrogen generation.
针对制氢转化炉炉管多次开裂失效的情况，进行了宏观分析、化学分析以及金相分析。