关键词 豇豆 ; 声频 ; 音乐 ; 鸟鸣声 ; 昆虫鸣声 [gap=1552]Key words Cowpea; Acoustic frequency; Music; Bird's song; Insect＇s sound
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... acoustic fraunhofer field夫琅和费声场 acoustic frequency音频 acoustic fresnel field非涅耳声场 ...
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... 交流发电机 generator; ac 声频发生器 generator; acoustic frequency 交流发电机 generator; alternating current ...
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acoustic frequency generator 声频发生器 ; 声频产生器 ; 音频发生器 ; 声频发声器
acoustic frequency signal generator 声频信号发生器
acoustic frequency measuring instrument 声频测量仪器
acoustic frequency sounding 声波频率测深
acoustic frequency branch 声频支 ; 声频分路
generator acoustic frequency 声频发生器 ; 声频产生器
resonant acoustic frequency 会形成共振声学频率
Hot firings show that the frequency of the oscillating shock is close to the acoustic frequency.
热试结果表明，振荡激波的频率与声频相近。
In this paper two kinds of acoustic frequency technique which were applied in shipbuilding technology in shipyard are discussed.
本文讨论了两种已经在船厂船舶建造工艺上应用的声频技术。
The real arbitrary waveform generator that can generate single acoustic frequency signal modulated by Manning window and Gaussian window is developed.
成功地实现了汉宁窗、高斯窗调制的任意频率单音频信号的产生，达到了任意波形发生器的功能。
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