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| optical guidance (一种制导系统，这个系统中制导是被动的，且基于感知目标的存在并使飞机朝向目标飞行的灵敏的光电元件) | |||
| optical guidance | |||
| optic guidance | |||
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光学 制导 : 31 phrases in 6 subjects |
| Air defense | 2 |
| Aviation | 7 |
| Electronics | 5 |
| Space | 11 |
| Technology | 5 |
| United States | 1 |
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