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| gallows frame | |||
| 吊杆架: 38 phrases in 9 subjects |
| Bridge construction | 2 |
| Drilling | 1 |
| Electronics | 2 |
| General | 1 |
| Hydrology | 1 |
| Nautical | 4 |
| Pest control | 1 |
| Shipbuilding | 3 |
| Technology | 23 |
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