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| 硬钢 (即高碳钢) | |||
| 高碳钢 | |||
| 硬钢; 中碳钢 (0.4-0.5C, 0.15~0.25Si,0.5~0.7Mn, <0.05P 和 S) | |||
| 硬质钢 | |||
| hard steel: 60 phrases in 12 subjects |
| Architecture | 2 |
| Automobiles | 2 |
| Aviation | 1 |
| Chemistry | 1 |
| Construction | 2 |
| Earth sciences | 1 |
| General | 5 |
| Metallurgy | 22 |
| Space | 1 |
| Steel production | 3 |
| Technology | 19 |
| Wind Energy | 1 |
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