Aeronautics. A directional radio transmission used to guide aircraft or missiles; frequently attributive, as beam approach.
| 单词 | θ197906 |
| 释义 | society > communication > telecommunication > radio communications > [noun] > radio wave > types of > used to guide aircraft or missiles (1) beam1927 Aeronautics. A directional radio transmission used to guide aircraft or missiles; frequently attributive, as beam approach. |
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