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| occurrence time | |||
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发生时间 : 51 phrases in 15 subjects |
| Air defense | 1 |
| Artificial intelligence | 1 |
| Aviation | 4 |
| Business | 5 |
| Commerce | 1 |
| Economy | 1 |
| Electronics | 10 |
| General | 2 |
| International trade | 1 |
| Lighting other than cinema | 1 |
| Oil / petroleum | 1 |
| Planning | 1 |
| Space | 9 |
| Technology | 12 |
| Wind Energy | 1 |
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