VHF
甚高頻
VHF
n 1: a group of illnesses caused by a viral infection (usually
restricted to a specific geographic area); fever and
gastrointestinal symptoms are followed by capillary
hemorrhage [syn: hemorrhagic fever, haemorrhagic
fever, viral hemorrhagic fever, viral haemorrhagic
fever]
2: 30 to 300 megahertz [syn: very high frequency]