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| metallography (【技】早期的金相学是用放大镜和光学显微镜研究金属和合金的纯实验科学。它主要是研究金属和合金的宏观与微观组织形成和变化规律，及其与成分及性能之间的关系。由于主要是靠金相显微技术，所以得到的金相学规律大多为经验规律。后来由于量子力学、固体物理及实验技术的发展，特别是 X 射线衍射和电子显微技术等测试手段的相继出现，金相学发展到新阶段，并于20世纪20、30年代逐步过渡到金属学领域。) | |||
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| 金 相 学: 49 phrases in 9 subjects |
| Automobiles | 2 |
| Electronics | 16 |
| General | 1 |
| Metallurgy | 19 |
| Metalworking | 1 |
| Name of organization | 2 |
| Oil / petroleum | 1 |
| Steel production | 2 |
| Technology | 5 |
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