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primary frequency
el. 基本频率; 主频
space 主用频率
telecom. 原频率; 第一次选用频率
wind. 主频率
 English thesaurus
primary frequency
avia., Canada The radiotelephony frequency assigned to an aircraft as a first choice for air-ground communication in a radiotelephony network
primary frequency
: 13 phrases in 6 subjects
Air defense1
Artificial intelligence1
Electronics3
Explosives and Explosive Ordnance Disposal1
Space2
Technology5

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