The weighted method is an important method of enhancing resolution in digital signal spectrumanalyses.
在数字信号谱分析中，加权处理是提高谱分辨率的重要方法。
2
In the meantime, scientific means, such as modern archaeological findings, historic research achievements, spectrum and chemical component analyses, should be applied to the appraisal of currencies.
同时，应该将现代考古研究成果、历史研究成果及光谱测试、化学成份分析等科学手段应用于钱币鉴定之中。
3
Then, make monitoring on ordinary trouble, and frequency spectrum analysis on all kinds of lubricants, and analyses mechanism of happened faults to determine fault causes.