0 a system that uses radio waves to find the position of objects that cannot be seen:
1 a device or system for finding the position or speed of objects, such as aircraft, that cannot be seen, by measuring the direction and timing of short radio waves that are sent out and reflect back from the objects
2 if something is below or under the radar, people are not aware of it:
3 used to say that people do or do not know about something or that something is or is not important to someone:
Six new transportable radars have now been delivered and preparation of new command and control systems is under way.
They are fitted with the latest air- and surface-warning radars.
They include the most sophisticated computer-controlled design equipment and machine tools, simulators, air traffic control radars, radio beacons, instrument landing systems—a vast range of items.
Development of stage 1 of the two-stage improvement programme has now been completed and modification of in-service radars is well under way.
The new radars are operational; work is continuing on the computer system.
Evaluation of the two alternative tracker radars is taking rather longer than anticipated.
Future plans for surveillance radars will not be settled before next year.
Radars to an interim standard have already been delivered.
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雷達…
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雷达…
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radar, radar [masculine, singular]…
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レーダー, 電波探知機…
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radar [masculine], radar…
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