贴士1。正规的“多层”口罩有12层以上，口罩手感柔软、富有弹性、薄厚均匀、没有明显结块体。
Tips 1. formal "multi-layer" mask has more than 12, mask soft, elastic, thick-even, with no apparent agglomeration body.
为了解决红外光谱定量分析中的特征提取和校正规模问题，提出了一种输入层自构造神经网络。
In order to solve the problems of feature extraction and calibration modeling in the area of quantitatively infrared spectral analysis, a structural adaptive neural network is proposed.
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