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directional antenna的英文翻譯是什么意思，詞典釋義與在線(xiàn)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(wú)線(xiàn)方向探測器一種無(wú)線(xiàn)電接收和指向天線(xiàn)系統，用來(lái)確定收到的無(wú)線(xiàn)電信號的角方向
