采用原位测量的手段记录了辐照前后的光谱反射系数。
The spectral reflectance before and after irradiations of electrons was insitu measured.
在辐照前后对每一个试样的光谱反射系数进行了原位测量。
The spectral reflectance of each test specimen is measured in situ before and after exposures.
通过辐照前后光谱反射系数的变化考察了实验样品的光学性能退化特征。
The degradation of optical property was investigated through changes of the spectral reflectance of specimens before and after the irradiation.
植物氮素含量与可见光和近红外光反射系数的比具有很好的相关性，因此利用光谱反射系数可以测定植物氮素含量，为合理的施用养分提供依据。
The ratio of the reflectance in visible and NIR is highly correlated with nitrogen applied to the plant. The nitrogen contents in the plant can be obtained by measuring spectrum reflectance.
植物氮素含量与可见光和近红外光反射系数的比具有很好的相关性，因此利用光谱反射系数可以测定植物氮素含量，为合理的施用养分提供依据。
The ratio of the reflectance in visible and NIR is highly correlated with nitrogen applied to the plant. The nitrogen contents in the plant can be obtained by measuring spectrum reflectance.
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