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单词 radar
释义
ra·dar (rādär)
n.
1. A method of detecting distant objects and determining their position, velocity, or other characteristics by analysis of very high frequency radio waves reflected from their surfaces.
2. The equipment used in such detection.
Idiom:
on (one's) radar/radar screen
In one's conscious awareness as a possibility or as an existing phenomenon: The governor said that running for president was not even on her radar screen.

[ra(dio) d(etecting) a(nd) r(anging).]
radar
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更新时间:2025/1/23 12:39:28