Terms for subject General containing low-frequency range

English	Chinese
low frequency omnidirectional range	低频全向无线电信标
low frequency/medium frequency range	低频-中频无线电信标
low-frequency long-range navigation	劳兰〔远航仪〕 (system)
low-frequency long-range navigation	低频劳兰〔远航仪〕 (system)