Vor - very high frequency omnidirectional range 甚高頻全向信標
Visual - aural omnidirectional range 目視和音響全向無線電信標
Very omnidirectional range 甚高頻全向信標
Vor aeronautical radio navigation aids . part 2 : technical requirements for very high frequency omnidirectional range 航空無線電導航設備.第2部分:甚高頻全向信標
英文解釋
a navigational system consisting of a network of radio beacons that provide aircraft with information about exact position and bearing 同義詞:omnirange, omnidirectional radio range,