矿物油；三维荧光光谱；光纤传感；特征提取；特征分类；定量分析。
Mineral oil; Three-dimensional fluorescence spectra; Optical fiber sensing; Feature extraction; Tag sort; Quantitative analysis.
主要原因是加氢生成油中的荧光性物质对光的安定性较差。
The fluorescence in oil is the main cause to poor stability of hydrogenated oil under the light.
任何回收的PAG油会使泄漏的液体发出荧光，如果你不确定的话，放一些PAG油进去好啦！
Any recovered PAG oil will have a luminescent glow to it but, if you are unsure, put some in!
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