频率

• The superficial layers are often frequency selective to transmission .
  表层传播一般都有频率选择性。
• It includes topics such as spatial frequency filtering, holography .
  它包括空间频率滤光、全息摄影。
• The reversion frequency is increased by the addition of mutagents .
  逆转的频率靠加入诱发变因素而增加。
• The waveform is onticeably less rich in the higher frequency .
  这样的合成波形明显地缺乏较高的那一频率。
• The doppler frequency is a function of the two scattering directions .
  多普勒频率是两个散射方向的函数。
• Its frequency response has to be flat over the whole audio range .
  它的频率响应在整个音频范围内有所下降。
• We use the term bandwidth to represent such a frequency range .
  我们用频带宽度这个词来代表这样的频率范围。
• The angular frequency of the disturbing force called the impressed frequency .
  扰动力的角频率称为外加频率。
• in allene, the frequency falls further to 1389 .
  在丙二稀类中，该频率再度降至1389厘。
• The frequency response function includes an aerodynamic transfer function .
  频率的主函数包括主动力传递函数。