 |
| 操作图: 89 phrases in 24 subjects |
| Architecture | 3 |
| Artificial intelligence | 1 |
| Automobiles | 1 |
| Aviation | 9 |
| Business | 7 |
| Desert science | 1 |
| Drilling | 1 |
| Earth sciences | 2 |
| Economy | 2 |
| Electronics | 10 |
| Exhibitions | 1 |
| General | 1 |
| Hydroelectric power stations | 1 |
| Industry | 1 |
| Information technology | 3 |
| Management | 6 |
| Metallurgy | 5 |
| Military | 1 |
| Oil / petroleum | 1 |
| Space | 1 |
| Technology | 26 |
| Telecommunications | 2 |
| Textile industry | 1 |
| Water resources | 2 |
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