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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