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| 塔架类型 | |||
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tower type : 60 phrases in 12 subjects |
| Agriculture | 1 |
| Architecture | 1 |
| Bridge construction | 2 |
| Chemistry | 5 |
| Drilling | 1 |
| Electric machinery | 1 |
| Energy industry | 1 |
| Metallurgy | 10 |
| Oil / petroleum | 2 |
| Refrigeration | 5 |
| Technology | 29 |
| Wind Energy | 2 |
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