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| 双头螺栓; 柱螺栓 | |||
| 双头螺栓柱螺栓 | |||
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bolt stud : 20 phrases in 9 subjects |
| Agriculture | 2 |
| Architecture | 1 |
| Automobiles | 3 |
| Compressors | 1 |
| General | 1 |
| Hydroelectric power stations | 3 |
| Oil / petroleum | 1 |
| Technology | 7 |
| Telecommunications | 1 |
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