無向性天線antenna: n. (pl. -nae , antennas) 1.【 ...nondirectional: 非定向的; 無方向性,非定向; 無向性nondirectional beacon: 全向信標(biāo)nondirectional counter: 不定向計(jì)數(shù)器nondirectional microphon: 無定向微音器下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯