omnidirectional antenna 全向性天线 omnidirectional radio 全向无线电 omnidirectional radio range (omnirange) 全向无线电导航 ..
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全向无线电信标 omnidirectionalrange ; [航] [水运] omnidirectional radio beacon ; ORB
甚高频全向无线电信标 VHF omni-directional range beacon ; frequency omnidirectional radio range
小功率全向无线电信标 baby omni
全向无线电指向标 non-directional radio-beacon ; circularbeacon ; beacon
全向无线电导航指示器 omnibearing indicator
全向无线电示标 omnidirection radio beacon
全向无线电导航 omnidirectional radio range
全向无线电范围 omnidirectional radio range
全向无线电信标区 omnirange zone
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