underground antenna 中文意思是什麼

underground antenna 解釋
地下天線
  • underground : adj 1 地(面)下的。2 隱蔽的,秘密的。3 (電影,報刊等)標新立異的,試刊的,試驗性而非正式的。4 ...
  • antenna : n. (pl. -nae , antennas)1. 【動物;動物學】觸角。2. 【無線電】天線〈英國常用 aerial〉。
  1. Above ground, several stations are equipped with a base station antenna to cover their areas. below ground, communication is via leaky coaxial cables driven by radio base stations located in each underground station. as a result, interference at entrances to underground stations happens frequently

    3 .地面沿線部分由數個車站設置基地臺之天線電波涵蓋,地下車站每一車站皆有基地臺透過漏波電纜輻射涵蓋,因而地下車站出入口部分干擾常常很嚴重。
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