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| |||
| 工字形截面 | |||
| |||
| 工字形断面 | |||
| 工字截面 | |||
| 工字断面型钢; 工字钢; I 型钢 | |||
| 工字形剖面 | |||
| 工字形断面; 工形截面 | |||
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I section : 24 phrases in 7 subjects |
| Automobiles | 1 |
| Bridge construction | 7 |
| Compressors | 1 |
| General | 1 |
| Metallurgy | 4 |
| Rail transport | 1 |
| Technology | 9 |
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