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| weathering | |||
| natural ageing (【技】将钢材或工件在室温下长期停留并产生组织和性能变化的过程，可用于大型铸件以消除铸造应力。); spontaneous aging; natural aging (【技】将钢材或工件在室温下长期停留并产生组织和性能变化的过程，可用于大型铸件以消除铸造应力。) | |||
| seasoning | |||
| natural aging | |||
| natural seasoning | |||
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| natural ageing | |||
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| weathering | |||
| 自然 时效: 3 phrases in 2 subjects |
| General | 1 |
| Metallurgy | 2 |
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