- [電子 通信] 調(diào)制頻率－載波比率
- frequency modulation carrier: 調(diào)頻載波
- frequency modulation carrier telegraph: 調(diào)頻式載波電報(bào); 調(diào)頻制載波電報(bào)
- frequency modulation improvement ratio: 調(diào)頻改善率
- modulation frequency ratio: 調(diào)制頻紡與載頻的比; 調(diào)制頻率與載頻的比; 調(diào)制頻率與載頻之比; 調(diào)制頻率載波頻率比
- carrier modulation: 載波調(diào)制
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