Frequency spec- trum analysis

• 频谱分析

Frequency spec- trum analysis的用法和样例：

例句

1. The random forces on the mole plough were studied by the spectral analysis method.
   采用频谱分析方法研究了鼠道犁土壤工作部件的随机受力。
2. The sinusoid frequency estimation algorithms for all phase spectrum analysis are studied.
   摘要研究了应用于全相位频谱分析的正弦波频率估计算法。