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| radar A system using beamed and reflected radiofrequency energy for detecting and locating objects, measuring distance or altitude, navigating, homing, bombing and other purposes | |||
| radar; radar apparatus | |||
| radar: 77 phrases in 10 subjects |
| Acoustics | 1 |
| Aviation | 1 |
| Communications | 64 |
| Earth sciences | 1 |
| English | 1 |
| Environment | 1 |
| General | 1 |
| Information technology | 1 |
| Natural sciences | 4 |
| Transport | 2 |