 |
| |||
| 普通钢; 碳素钢; 普通【碳素】钢 | |||
| |||
| 普通钢 | |||
| ordinary steel: 19 phrases in 4 subjects |
| Bridge construction | 4 |
| Metallurgy | 8 |
| Oil / petroleum | 1 |
| Technology | 6 |
|
| |||
| 普通钢; 碳素钢; 普通【碳素】钢 | |||
| |||
| 普通钢 | |||
| ordinary steel: 19 phrases in 4 subjects |
| Bridge construction | 4 |
| Metallurgy | 8 |
| Oil / petroleum | 1 |
| Technology | 6 |