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- frequency wavenumber (F-K) migration 钢筋混凝土检测
- He varied the transmission frequency. 他变换了无线电传送的频率。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- 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。
- 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。
- He tuned his radio to the police frequency. 他把无线电调到警方的频率。
- The dispersion characteristics were computed on the assumption that the frequency is a real number and the wavenumber is a complex number. 然后分析了系统中的位移分布,以此确定了各模式检测管材的最佳频厚积范围和检测的最佳位置。
- In addition to wavelength, Frequency, in hertz, and wavenumber, in inverse units of length, are also used to specify and designate the character and quality of the radiation. 除了波长以外,频率、赫兹和波束,长度倒数的单位,同样被用于去规定和指明特性和辐射量。
- He manipulated the frequency dial of the radio. 他开始调拨频率键盘。
- The pitch depends on the frequency. 音调的高低是由频率决定的。
- The resulting frequency varies by a few percent. 最终频率有少许变动。
- I am majored in audio frequency amplifier. 我主修音频放大器。
- Small dissipation factor at high frequency. 高的频率和小的损耗因素.
- Spread the palpitate frequency love till ending. 循着心跳的频率爱到永不分离。
- Wave speed equals frequency times wavelength. 波速等于频率乘以波长。
- Using the Normal Model Theory and Wavenumber Integration Method, a low frequency acoustic wave propagation model in shallow sea of multi-layered media is constituted. 应用简正波理论并结合波数积分法,建立了浅海低频声传播特性的仿真数学模型。
- As she moved up in frequency, her ascension began. 当她频率增加时，她的提升也就开始。
- Fast frequency hopping avoids interference. 快速跳频避免干扰。
- Exterior the support video frequency loss reports to the police with the migration detects reports to the police. 支持视频丢失报警和移动侦测外部报警。
