... derivatization 衍生化（作用） derivative spectrum 导数光谱 dermatan sulfate 硫酸皮肤素 ...
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second derivative spectrum 二次微分光谱 ; 二阶导数光谱
first derivative spectrum 一级导数光谱
Derivative Spectrum Law 导数光谱法
derivative absorption spectrum 导数吸收光谱
second derivative spectrum method 二阶导数光谱
2nd derivative spectrum 二阶导数光谱法
ratio derivative spectrum 比值导数波谱
The results showed that spectrum in red edge area was significantly affected by nitrogen levels and varietal types,and "three-peak" feature could be observed with the first derivative spectrum in this area.
结果表明,水稻冠层的红边区域光谱受施氮水平和品种影响较大,一阶导数光谱在红边区域出现"三峰"现象。
参考来源 - 水稻高光谱红边位置与叶层氮浓度的关系·2,447,543篇论文数据，部分数据来源于NoteExpress
Sceond-order derivative spectrum;
二阶导数谱；
Conclusion Either ultraviolet spectrum or derivative spectrum can be used as a tool of quality evaluation of Hongqu.
结论：紫外光谱法可作为红曲药材的质量评价手段之一。
This proves that it is feasible to use the technology of derivative spectrum and the method of vegetation index to monitor the pigment concentration and growth of rice.
这表明，用微分光谱技术与植被指数方法来监测水稻的色素含量和长势应该是可行的。
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