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| 疲劳龟裂; 疲劳裂纹 | |||
| 疲劳裂纹疲劳裂缝疲劳裂纹; 疲劳裂缝 | |||
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трещина усталости : 5 phrases in 3 subjects |
| General | 1 |
| Oil processing plants | 2 |
| Technology | 2 |
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