查询词典 derivative

The volume of foreign currency derivative transactions conducted on behalf of customers reached US$6 billion, an increase of 102.4% over the same period last year.

累计外币代客衍生产品交易量同比增长102.4%，达60亿美元。

The term involving the time derivative of the control volume integral represents unsteady effects associated with the fact that values of the parameter within the control volume may change with time.

这条件包含了控制体积积分法内，与在控制容积中的参数可能会随时间改变这个事实所相关的非定常效应。

This introduces several basic manipulative techniques of preparative chemistry and quantitative volumetric analysis including preparation and characterization of a derivative, recrystallization, determination of equivalent weight by using titration and determination of melting points.

这里介绍了几个基本的合成技术和定量分析法，包括衍生物的合成及其结构表徵，再结晶，用滴定法确定等当量和熔点测定。

This suggests that the word pot comes from some vulgar Latin derivative of the classical Latin verb potare, to drink.

这表明，盆栽一词来自拉丁美洲的一些庸俗的衍生古典拉丁动词potare ，饮用。

It is convenient to calculate derivative in wave number space using the inbuilt FFT function in Matlab.

利用Matlab内建的快速傅氏变换函数可以方便地在波数域计算重磁异常导数。

Loosedthe inter-element continuity further with the requirement of Irons'patch test,obtains the weak continuity condition ensured convergence.It comprises thefunction value at the node continue and its nominal derivative continue 2conditions,hence do enlarge the constructing area of the finite element.

用分片试验的要求来进一步放松单元间的连续性，可以得到保证收敛的弱连续条件，它只包括单元顶点的函数值连续和法向导数积分连续2个条件，从而扩大了有限元的构造范围。

First derivative spectrophotometric method for determining of micro samarium in electroplating solution is given,using xylenol orange as color reagent.

提出了利用二甲酚橙为显色剂测定电镀液中微量钞的一阶导数分光光度法。

The general principle and the applications of numerical derivative zero crossing method is described for resolving overlapped spectra of binary system.

在简述数值微分零交点法分辨重叠谱的原理基础上，研究了该方法对不同分离度的两组分重叠谱图的分辨效果。

One can obtain the explicit formulation to calculate the displacement through setting the partial derivative of object function to zero.

通过偏导数等於零，得到求解位移向量的显式运算式，算法具有设计合理、实现简便、计算量小等特点。

MethodsThe FTIR was utilized to investigate the different parts of Abrus cantoniensis, the secondary derivative spectra and semi-quantitative analysis were used to analysis difference constituents of different parts of Abrus cantoniensis,.

目前，研究鸡骨草的化学成分主要采用紫外分光光度法、反相高效液相色谱法等［4～7］，这些方法前处理过程复杂、耗资多，很难直接应用于鸡骨草药材质量的快速评价。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。