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| дисперсионное твердение | |||
| искусственное старение | |||
| ускоренное старение | |||
| приобретение вторичной твёрдости | |||
| выдержка | |||
| artificial ageing: 4 phrases in 2 subjects |
| Polymers | 2 |
| Quality control and standards | 2 |
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