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| drawing change: 40 phrases in 12 subjects |
| Architecture | 1 |
| Aviation | 12 |
| Bridge construction | 4 |
| Business | 4 |
| Earth sciences | 1 |
| Economy | 4 |
| Electronics | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 4 |
| Space | 3 |
| Technology | 4 |
| Wind Energy | 1 |
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