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| 采访查重; 采购査重; 查重购前查证; 预订查重; 购前查证; 预订査重查重; 采购查重 | |||
| acquisition search: 6 phrases in 4 subjects |
| Air defense | 2 |
| Aviation | 1 |
| Space | 1 |
| Technology | 2 |
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