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| 热镦粗; 热顶锻镦 | |||
| 热顶锻; 热镦锻 | |||
| 热镦粗 | |||
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| 热中; 心急 | |||
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hot heading : 10 phrases in 4 subjects |
| Automobiles | 1 |
| Metallurgy | 4 |
| Plastics | 1 |
| Technology | 4 |
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