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| 化学、生物学和放射性的 | |||
| 化学、生物细菌与放射性 (warfare, 战争) | |||
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| 化学的、生物的和放射性的 | |||
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chemical , biological and radiological : 5 phrases in 4 subjects |
| Air defense | 1 |
| Aviation | 1 |
| General | 1 |
| Space | 2 |
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