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| information activities | |||
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信息活动 : 14 phrases in 11 subjects |
| Air defense | 1 |
| Automobiles | 1 |
| Aviation | 1 |
| Business | 1 |
| Earth sciences | 1 |
| Electronics | 2 |
| Information technology | 2 |
| Name of organization | 1 |
| Space | 1 |
| Technology | 2 |
| United Nations | 1 |
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