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| standing derrick; jib | |||
| derrick mast; gib; pole derrick | |||
| 扒杆: 24 phrases in 5 subjects |
| Agriculture | 3 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Hydroelectric power stations | 3 |
| Oil / petroleum | 5 |
| Technology | 12 |
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