This method has come into general application, and is similar in some ways to spectral analysis. 這種方法得到了普遍應用，從某種意義上來說與光譜分析相似。
The AR model is used to perform a time-series modeling and forecasting analysis for the spectral analysis data co llected from aero-engines. 討論了時序建模與預測方法在機械設備滑油光譜分析中的應用。
The random forces on the mole plough were studied by the spectral analysis method. 採用頻譜分析方法研究了鼠道犁土壤工作部件的隨機受力。
The spectral analysis showed laminal flow in the former and turbulent flow in the latter. 頻譜分析前者為層流，後者為湍流。
