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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 | |||
| radio detection and ranging | |||
| رادار: 18 phrases in 4 subjects |
| Aviation | 2 |
| Radio | 7 |
| Remote sensing | 7 |
| United Nations | 2 |