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| preparedness plan | |||
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预 防计划 : 23 phrases in 9 subjects |
| Business | 2 |
| Earth sciences | 2 |
| Economy | 4 |
| Electronics | 1 |
| Exhibitions | 1 |
| Name of organization | 4 |
| Space | 3 |
| Technology | 5 |
| United Nations | 1 |
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