Measuring method for differential coefficient of expansion and the standard uncertainty is introduced as well.

同时介绍了微分膨胀系数的测量方法及其测量不确定度。

Using position data to obtain velocity parameters of object through differential coefficient is a general method in range.

通过对定位数据求微分以获得目标的速度参数，是靶场估计目标运动参数的常用方法。

The control system consists of two current controllers using ADRC and one voltage controller based on differential coefficient detection.

控制系统包括两个采用ADRC的电流控制器和一个基于“微分检测”的电压控制器。

The VCO module makes use of differential coefficient circuit design technology to lower the effect of power resource on the clock signal input shake.

系统VCO模块采用微分电路设计技术，可将电源噪音对时钟信号输出抖动的影响降至最低。

Objective: To establish a simple rapid method for determining Kjeldahl nitrogen content by 1st order differential coefficient single sweep polarography.

建立用一阶导数单扫描极谱法测定食品中凯氏氮含量的简单、快速的方法。

The differential coefficient of smooth function was taken as a mother wavelet for researching the sensitivity segment of inflexion of pipeline leakage signal.

以光滑函数的一阶导数作为小波母函数 ，研究了管道泄漏特征信号拐点区间的敏感性 ，突出小波变换系数的局部极值性。

At present, the method of sensitivity analysis depends on a algorithmic optimization, and asks to be can compute differential coefficient of the target function.

目前的灵敏度分析往往需要依赖于某种寻优算法，并要求目标函数能求取偏导数。

At first we can get the Lagrangian function from the elliptic equation, then replace differential coefficient by difference and get the discrete Lagrangian function.

给定一个椭圆方程，我们先找出这个方程的拉氏函数，用差分代替微分，得到离散的拉氏函数。

Through the examination experiment on three tube pieces' crack part, the relation of crack width, the maximum of leak magnetic field and differential coefficient is found out.

通过对三个管件的裂纹部位的检测实验，找出裂纹宽度与漏磁场的最大值和变化梯度之间的关系。

Through the examination experiment on four tube pieces crack part, the relation of crack width, the maximum of leaking magnetic field and differential coefficient K is found out.

以经爆破试验的四件小钢管件裂纹为研究对象，找出裂纹宽度与磁记忆信号的关系，得出漏磁场变化梯度的最大值随裂缝宽度增加而增加。

The supply price is relied on the cost for the emission reduction, the its differential coefficient of the cost , the capital value, and the planned emission reduction in the life cycle.

其大小取决于其国内减排成本、减排成本的变化情况、卖出减排量时资金的价值、以及国家在卖出减排量寿期内计划投产的减排能力。

Differential coefficient method together with distribution parameter estimation is put forward, so that the data processing may be implemented on a computer, thus greatly reducing calculation.

提出了在用改进雨流计数法进行载荷数据统计时结合载荷分布参数估计的变差系数法，可简化统计处理过程，提高计算速度。

At present, the methods of edge detection of erythrocyte are using traditional theory such as edge one-order or second-order orient differential coefficient and using simple methods to detect edge.

目前，红细胞边缘形态的检测一般都是利用传统的边缘检测方法，如边缘临近一阶或二阶方向导数法，利用简单的方法来检测边缘。

The thesis analyzes the relationship between Wronsky determinant and linear equation relativity of function in order to get the common solution determinant of linear differential coefficient equation.

探讨了某些特殊类型二阶变系数齐次线性常微分方程的解与系数的广义关系，尝试了从理论上给出通解的一般形式和特解的系数决定式。

Therefore, the differential equations 'coefficient matrix of the free vibration of the spatial rigid body is automatically formed, and free vibration frequency and its type can also be found out.

最后自动组成空间刚体自由振动微分方程的系数阵，并计算出刚体的自振频率和振型。

According to coupled wave theory, and from the non-linear differential equation describing characteristics of reflection hologram, the reflective coefficient of reflection hologram is analyzed.

根据耦合波理论，从描述反射全息的非线性微分方程出发，对反射全息图的振幅反射系数进行了分析。

Differential temperature drawing in deep sleeve parts can reduce coefficient and times of drawing, then cut down the cost.

用温差拉深工艺成形深筒形件能大幅度降低拉深系数，减少拉深次数，降低生产成本。

In this paper, the exact analytic method is suggested to solve variable coefficient differential equations under arbitrary, boundary condition.

本文首次提出精确解析法，用以求解任意变系数微分方程在任意边界条件下的解。

It is also a sufficient condition for second order linear differential equation with varied coefficient to be integrable.

对于二阶变系数线性微分方程来说，这也是可积的一个充分条件。

The two conditions of the second order nonlinear differential equation with variable coefficient are given and expounded with examples.

对二阶变系数非线性微分方程的常系数化给出两个使其可积的条件，并举例论证。

It can be applied to solve nonpositive definite or positive definite partial differential equation with arbitrary variable coefficient under arbitrary boundary condition.

它可以求解在任意边界条件下任意变系数正定或非正定偏微分方程。

Two methods of variable polarization are discussed, and some formulae for wave-mode differential phase, nonreciprocal phase and variable polarization coefficient are deduced.

讨论了两种实现变极化的方法，推导了求解波型差相移、非互易差相移和变极化系数的精确公式。

The differential equation with varied coefficient of the SH-wave in the functionally graded materials is established.

建立了功能梯度材料中SH波的变系数微分方程。

Based on the above, the impact of amplitude coefficient ratio on amplitude-phase Double Differential Space-Time Codes is discussed, and an optimal selection scheme in amplitude coefficient is given.

在此基础上，讨论了幅度系数比对幅度相位双差分空时码的影响，并给出了一种最佳的幅度系数选择方案。

This paper establishes a delay differential inequality with varying coefficient and varying delay.

本文首先建立一个变系数变时滞微分不等式。

By the discretization of spatial variable in the equation, a third-order differential system of equations containing periodic time-varying coefficient is derived.

采用微分求积法对方程中的空间变量进行离散，得到仅含有时间变量的三阶周期系数微分方程组。

It doesn't need the variational principle and can be applied to solve non-positive or positive definite partial differential equations with arbitrary variable coefficient.

该方法不用一般的变分原理，可适用任意变系数正定和非正定偏微分方程。利用这一方法得到一个新的八节点四边形平面应力单元。

In approximate calculation of radiation transport differential equation absorption coefficient is a fundamental parameter.

辐射传输方程微分方法的近似解通常以吸收系数为基本参数。

The differential gain coefficient decreases with increased sheet carrier density.

微分增益系数随薄层载流子密度的增加而降低。