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| 光学雷达 | |||
| 光雷达 | |||
| 光学雷达; 光学定向测距仪 | |||
| 时域反射计 | |||
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| 光学雷达; 光学定向测距仪 | |||
| optical radar: 40 phrases in 6 subjects |
| Air defense | 8 |
| Aviation | 1 |
| Electronics | 5 |
| Oil / petroleum | 1 |
| Space | 6 |
| Technology | 19 |
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