一: one阶: steps; stairs导数: derivative; differential coe ...光谱: light spectrum; optical spec ...法: law一阶导数差示脉冲极谱法: first-derivative differential pulse polarography向一阶导数: u first derivative一阶导数: first derivative; first-order derivative导数光谱: derivative spectrometry; derivative spectrum导数光谱学: derivative spectrometry一阶导数滴定: first derivative titration; first order differential titration一级导数光谱: first derivative spectrum一阶导数双波长法: first-derivative dual-wavelength method一阶导数分光光度法: first derivative spectrophotometry阶导数: derivative of n th order; n th derivative; th derivative导数吸收光谱法: derivative absorption spectroscopyn阶导数: derivative of n th order二阶导数: second derivative; second-order derivative高阶导数: derivative of high order; derivative of higher order; derivatives of higher order; higher derivative; higher order derivative最高阶导数: highest derivative二阶导数滴定: second order derivative titration二阶导数谱学: second derivative spectroscopy光谱法: optical spectrographic method; power-spectral method; spectra methods; spectroscopic methodology测深面二阶导数: second derivatives of the bathymetric surface二阶导数电位滴定: second-derivative potentiometric titration; second-derivative potentiometric titriation
