光传感器目标识别则是在取得目标的反射特性和辐射特性（光谱）后提取其特征进行识别。
Optical sensor target recognition extracts the characteristic of target to perform target recognition after having acquired its reflection and radiation (spectra) characteristics.
结果紫花曼陀罗子种皮石细胞特征明显，具生物碱的化学反应特性，并且两者紫外光谱差异大。
Results The results showed that there were obvious stone cells of testa characteristics, alkaline reaction, and different UV in the seeds of Datura stramonium L. var. tatula Turrey.
材料的光谱特性能够直接反映材料的组成、结构和形态特征。
The spectral characteristic of the materials can indicate its component, structure and morphology.
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