1) all derivatives
各阶导数
2) derivative order
导数阶数
1.
In this paper,Some kinds of new equations of Euler’s type are pro- vided,which extends more consummately the integrable types in the references in two aspects,the factor exponent and the derivative order of unknown function contained in the equations.
本文提供了几类新的Ｅｕｌｅｒｒ型方程，从方程所含因子指数和未知函数的导数阶数两个方面较完善地扩充了可积类型。
3) First derivative
一阶导数
1.
Methods:First derivative spectrometry was established.
方法:采用一阶导数分光光度法,测定波长为275nm和317nm。
4) multiorder derivative
多阶导数
1.
The review covers the developments in the field of dual-wavelength and multiorder derivative spectrophotometry in the analysis of precious metals during the period from January 1990 to December 2001 at the home and abroad.
评述 1 990～ 2 0 0 1年国内外有关双波长和多阶导数分光光度法在贵金属分析中的应用。
5) second derivative
二阶导数
1.
A class of stiffly stable k-step second derivative methods of order k+2;
一类k步k+2阶的二阶导数方法
2.
The infrared diffuse reflectance spectra of PP pellets and powder were directly determined, and then pretreated through multiple scattering calibration ( MSC) , first derivatives ( number of spectrum to absorption of diffused reflection spectrum), second derivatives (number of spectrum to absorption of diffused reflectio.
采用一阶导数、二阶导数、多元闪射校正(MSC)等方法进行光谱预处理,并用局部权重回归(LWR)和偏最小二乘法(PLS)建立平均相对分子质量(和)的校正模型。
3.
The second derivative item is introduced to control diffusion along coherence orientation in coherence enhancing diffusion algorithm (CED).
为了对原始光学相干层析图像进行预处理以有效地去除图像中的噪声及散斑、增强图中的层状结构,并更好地保护图像中的层状结构,进而更准确地定量测量图像中有重要意义的层状结构的光程信息,提出在相干增强各向异性扩散(CED)算法中引入二阶导数项以控制沿相干方向的扩散强度,并将引入二阶导数项的相干增强各向异性扩散算法应用于不同样品的光学相干层析图像。
6) First-derivative
一阶导数
1.
Determination of the content of allantoin in allantoin-vitamin E cream by zero-crossing first-derivative spectrophotometry;
零交一阶导数分光光度法测定尿囊素维E乳膏中尿囊素含量
补充资料：各各
1.各自。 2.个个，每一个。 3.每一种。 4.布散貌。 5.象声词。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条