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shift frequency
auto. 换档频率
tech. 移频
shift frequency
: 216 phrases in 21 subjects
Air defense26
Automobiles2
Aviation9
Communications6
Construction1
Electric machinery1
Electronics72
General3
Geophysics5
Information technology14
Metallurgy1
Multimedia1
Oil / petroleum1
Otorhinolaryngology1
Radio2
Rail transport5
Shipbuilding2
Space24
Technology24
Telecommunications15
Wind Energy1