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| 草图 | |||
| map sketch: 23 phrases in 8 subjects |
| Agriculture | 1 |
| Aviation | 3 |
| Bridge construction | 1 |
| Drilling | 1 |
| Hydroelectric power stations | 2 |
| Life sciences | 1 |
| Oil / petroleum | 1 |
| Technology | 13 |
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