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| 断口低倍〔宏观〕检验 | |||
| 断口低倍检验; 断口宏观检验 | |||
| 低倍断口照相术; 低倍断口金相学 | |||
| 宏观断口金相学 | |||
| macrofractography: 1 phrase in 1 subject |
| Metallurgy | 1 |
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