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- The higher the acoustic frequency is, the stronger its directivity is. 而且所有声频均有指向性,声频愈高,指向性愈强。
- 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。
- Application of CTS telemetry technology in the acoustic frequency and spectrum logging tool. CTS遥传技术在声频谱测井仪器中的应用
- underwater acoustical frequency hopping communication 水声跳频通信
- He varied the transmission frequency. 他变换了无线电传送的频率。
- Of or relating to acoustic frequencies above the range audible to the human ear, or above approximately20, 000 hertz. 超过人耳能听到的范围或超过大约20，000赫兹的，与超过人耳能听到的范围或超过大约20，000赫兹的声音频率有关的
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- acoustic frequency measuring instrument 声频测量仪器
- This system can set up acoustical resonances. 这种系统能产生共鸣。
- acoustic frequency signal generator 声频信号发生器
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- NINGBO APPLE ACOUSTICAL EQUIPMENT CO., LTD. 宁波苹果音响器材有限公司。
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- Specifically, snow tends to absorb higher frequency acoustical waves. 很特别的是，雪花趋向吸收更高频率的声波。
- A reverb unit simulates the sound of different acoustical areas. 混响单元是模拟不同声学空间中的声音。
- He tuned his radio to the police frequency. 他把无线电调到警方的频率。
- acoustical frequency 声频,音频
- Acoustical liberation of books in the public domain. 意思是公共领域书籍的听觉解放。
- How to examine acoustical immittance to measure listen to a result? 如何查看声导抗测听结果呢？
