汉英词典
Chinese-English Dictionary
MEANING OF 调频
调频 (調頻)
frequency modulation / FM
〈动〉❶调整交流发电机等的输出功率，使电力系统等的频率保持在一定范围内，以保证用电设备正常工作。❷使载波的振幅保持不变，而它的瞬时频率依照所需传递信号的变化规律而变化。
调 (調) diào/tiáo 频 (頻) pín
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