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标准钢 : 76 phrases in 10 subjects |
| Architecture | 1 |
| Bridge construction | 5 |
| Business | 3 |
| Earth sciences | 1 |
| Economy | 1 |
| General | 3 |
| Hydroelectric power stations | 1 |
| Metallurgy | 28 |
| Nautical | 1 |
| Technology | 32 |
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