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low-level defence | |||
low-level air defence; low altitude defence | |||
low altitude air defense; low level air defense | |||
low-altitude defence (对洲际弹道导弹的) |
低 空防御: 12 phrases in 6 subjects |
Air defense | 1 |
Aviation | 4 |
Business | 1 |
Electronics | 2 |
Space | 3 |
Technology | 1 |