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frequency allocation
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mil., air.def.
频段
频率
分配
表
space
频率分配
tech.
频率分布
;
频段分配
telecom.
频率配置
;
★
频率划分
frequency allocation
:
22 phrases
in 9 subjects
Air defense
3
Aviation
1
Electronics
6
General
1
Geophysics
2
Information technology
3
Space
2
Technology
2
Telecommunications
2
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