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directional antenna的英文翻譯是什麼意思，詞典釋義與在線翻譯：
英英釋義
Noun:
-
an antenna that transmits or receives signals only in a narrow angle
directional antenna的用法和樣例：
例句
- A radio receiver and directional antenna used as a system to determine the angular direction of incoming radio signals.
無線方向探測器一種無線電接收和指向天線系統，用來確定收到的無線電信號的角方向
