frequency-modulation allocation 调频波段分配 FAL Frequency Allocation List 频率分配表 FAC Frequency Allocation Committee 频率分配委员会 ..
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... frequency assignment problem 频点规划 frequency assignment chart 频率分配表 Frequency of Giving Assignment 课业次数 ...
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... frequency alias control system 频率控制方式 frequency alias assignment chart 频率分配表 frequency alias converter tube 变频管 ...
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