beat frequency [电子] 拍频 ; [电子] 差频 ; 差拍 ; 拍音
beat frequency receiver 拍频接收机
beat frequency amplifier [电子] 拍频放大器
beat frequency detector 拍频检波器 ; 差频检波器
beat frequency meter 差频频率计
ciliary beat frequency 测定纤毛摇动频率
beat frequency electrotherapy unit 差频电疗机
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He says it is possible to detect different species of mosquito because their wings beat with a distinctive frequency.
他表示，检测不同种的蚊子是有可能的，因为它们翅膀扇动的频率有着明显区别。
In this paper, a measuring instrument is designed based on relative measurement of the semiconductor laser frequency stability making use of the beat technology.
本文设计了一种测量仪，基于拍频技术对半导体激光器频率稳定度进行相对测量。
The Doppler frequency can be obtained as a heterodyne or beat effect.
由于外差或频差效应，能够得到多普勒频率。
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