针对目前冷轧生产中因轧辊偏心引起带材厚度波动的问题，提出了一种提高轧辊偏心信号频谱分析精度的方法。
Aiming at strip thickness fluctuation presently caused by roll eccentricity in cold rolling, a method of improving precision in spectrum analysis is proposed.
利用频谱分析法对周期运动和混沌运动进行判断，并对嵌于不同混乱带中的周期轨道进行区分。
By using the frequency analysis method the periodic motions and chaotic motions are judged, and the periodic orbits embedded in different chaotic bands are distinguished.
挥发性的离子被带少许碱性或酸性的吸收溶液收集，然后对其进行离子色谱、伏安法或原子分光谱分析。
Volatile ions are trapped in slightly basic or acidic absorption solutions for subsequent direct determination by ion chromatography, voltammetry or atomic spectroscopy.
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