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超声频 chāoshēngpín
avia. ultrasonic frequency
el. supersonic frequency
超声〔音〕频
gen. superaudio
超 声频: 44 phrases in 13 subjects
Business1
Electronics3
Explosives and Explosive Ordnance Disposal1
General4
Geophysics2
Information technology1
Metallurgy6
Nursing1
Oil / petroleum2
Otorhinolaryngology1
Space1
Technology20
Water resources1