ˈfre·quen·cy modu·la·tion 名词, FM 无线电
- frequency modulation
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pulse am·pli·tude modu·ˈla·tion 名词 电气
phase modulation 名词
- phase modulation 物理
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quadrature amplitude modulation, QAM 名词
amplitude modulation, AM 名词
- Modulation
- modulation
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- frequency modulation