以上来源于: WordNet
An inverter is constructed to improve the harmonic spectrum of the current by damping the high-frequency components using these components.
构造了一个逆变换器来实现对高频分量的抑止效果。
The detailed structure of spectrum of atmospheric tides is obtained by the spectral analysis-and harmonic analysis from the microbarograph records.
根据微气压计记录采用频谱分析和调和分析两种方法得出了大气潮谱的详细结构。
On the basis of building the ship radiated-noise model, the mathematical expectation expressions of ship radiated-noise demodulation spectrum harmonic clan feature were educed.
在建立舰船辐射噪声仿真模型的基础上，推导了单、双螺旋桨舰船辐射噪声调制谱谐波族幅值特征的数学期望表达式。
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