非定向的

asatic microphone【电子】;nondirectional microphone【电子】

nondirectional antenna【电讯】;unipole antenna【电讯】

nondirectional counter【自】

nondirectional microphon

nondirectional beacon\nNDB\n通信

nondirectional beacon【航】;omnidirectional range【航】

nondirectional【科技】

nondirectional microphone