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| 轨道铺设; 铺轨 | |||
| 磁迹时间对准 | |||
| track laying: 61 phrases in 7 subjects |
| Advertising | 1 |
| Agriculture | 6 |
| Automobiles | 6 |
| Bridge construction | 4 |
| Rail transport | 7 |
| Technology | 36 |
| Water resources | 1 |
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