It is a partial differential equation satisfied by the electric field e.
这是一个，由电场e确定的偏微分方程。
The equations are extra nonlinear differential equations. the dexter function is not continuous in field of real number .
该方程右边的函数在实数域内不连续，是一个高度非线性微分方程组。
HART field-bus protocol is used in output of system pressure or differential pressure transmitter, digital signals is transmitted with MODBUS via RS485.
系统压力或差压变送器信号输出采用HART现场总线协议，数字信号传输通过RS485进行MODBUS通讯。
Objective To investigate MR findings and differential diagnosis of biliary obstructive disease with Low Field MRI.
目的探讨低场MRI对胆管梗阻性疾病的诊断和鉴别诊断价值。
The theory of rectilinear congruence is an important field in differential geometry.
直线汇理论是古典微分几何的一个重要研究领域。
According to the fundamental equation of steady current field, the corresponding functional equation is obtained by use of the linear differential operator.
从稳定电流场基本方程出发，通过定义线性微分算子，推导出与之等价的泛函方程。
The finite differential method was applied to develop a simulation software for solidification temperature field in continuous casting.
采用有限差分方法，自行开发了连铸过程的凝固温度场模拟软件。
Secondly, the principle of finite element analysis of electromagnetic field is studied, Maxwell equations and differential equations are stated.
第二，本文研究了电磁场有限元分析原理，介绍了麦克斯韦方程和电磁场微分方程。
Using the finite differential method we calculate the temperature field and frozen depth of pavement proper when the road is freezing by degrees with moisture migration.
采用有限差分方法，完成了土基冻结逐渐进行且伴随有湿迁移的路面体温度场的计算和冻结深度的确定。
To evaluate the diagnosis and differential diagnosis value of low-field MR plain scanning in hepatocellular carcinoma (HCC) and hemangioma.
目的探讨低场MR平扫在肝细胞癌(HCC)的诊断与鉴别诊断中的价值。
Based on the relationship of electric field strength and electric potential, the capacity of non-parallel plate capacitor is derived from solving differential equations.
对于非平行平板电容器，利用电场与电势的基本关系，求解微分方程，得到电容器的电容值。
Firstly, in the sight of basic principle on conductions of heat, Fourier heat conduction differential equation of temperature field is founded.
首先，根据热传导的基本原理，建立温度场的傅立叶导热微分方程。
Based on field investigation and statistical data, the relation plate of annulus pressure differential, interlayer differential and cementing quality is plotted.
结合现场调查和统计规律，建立了环空压差和层间压差与固井质量的关系图版。
Semiconductor diodes bipolar junction transistors field-effect transistors transistor amplifiers frequency response operational amplifiers differential and multistage amplifiers integrated circuits.
半导体、二极体、双极电晶体、场效电晶体、电晶体放大器、频率响应、算放大器、差动及多极放大器、积体电路。
Consequent differential form and integral form of gravitational potential are deduced from the two laws of gravitational field.
根据引力场的两个定理，导出了引力势的微分和积分形式。
This paper reports a differential magnetic localization algorithm in high background magnetic field that interferes localization of permanent magnet.
为了有效去除高背景磁场对永磁体定位的磁干扰，本文提出了一种高背景磁场下的差分磁定位算法。
This article reviewed MRI depictions of pancreatic diseases, their values in diagnosis and differential diagnosis, and clinical application of MRI in this field.
本文对不同胰腺疾病MRI表现、MRI在诊断和鉴别诊断中的作用及在胰腺疾病临床研究中的应用进展做一综述。
In the greenhouse, by conducting pot and field experiments, the diagnosis method of crop moisture content from variable differential in stem diameter of tomato was studied.
在温室条件下，盆栽和小区试验相结合，进行了用番茄株茎直径变差法诊断其水分状况的试验研究。
The overall structural patterns have controlled the differential accumulation and distribution of oil and gas in the Yong'anzhen oil field.
这一主体构造形式控制了永安镇油田的油气的差异运聚与油气分布规律。
A new magnetic field measurement based on the Faraday effect and the measurement of differential group delay (DGD) in fiber grating was proposed.
提出了一种利用光纤光栅中法拉第效应和测量差分群时延(DGD)的直接测量磁感应强度的新方法，给出了理论分析和实验结果。
Production performance, pressure field and saturation field are measured with a differential pressure unit and saturation measuring probes.
用模型上布置的压差传感器和饱和度测量探针，测量了聚合物驱的开采效果、压力场和饱和度场变化。
The research on multi-dimensional conservation laws is one of the most challenging direction in the field of nonlinear partial differential equation, it is very important and very difficult.
高维守恒律方程的研究是非线性偏微分方程的最具有挑战性的方向之一。
Parameter identification problems belong to the partial differential equations inverse problems. They are also common in the field of natural science and engineering.
参数识别反问题是偏微分方程反问题的一类，也是在自然科学与工程技术的各领域比较常见的问题。
The magnetic field induced by the even varying electric field is calculated by solving differential equations, and the result is identical to that from integral.
通过求解微分方程，得到圆形平行板电容器间匀变电场激发的感生磁场，所得结果与积分法完全相同。
Three methods for gravity field recovery are mainly studied from the views of observation equation, (1) numerical differential method, (2) energy balance approach, (3) numerical integration method.
从建立观测方程的角度来说，主要研究了三种恢复地球重力场的方法：(1)数值微分法，(2)能量守恒法，(3)数值积分法。
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。
An electric field microsensor based on electrostatic comb -driven and differential detecting was presented.
研制了一种基于静电梳齿激励、差分检测式微型电场传感器。
Objective To probe diagnostic value of oral Ferrimage in differential diagnosis of extrahepatic biliary obstructive diseases using low field MR.
目的探讨口服复锐明在低场磁共振诊断肝外胆管梗阻病变中的应用价值。
Objective To probe diagnostic value of oral Ferrimage in differential diagnosis of extrahepatic biliary obstructive diseases using low field MR.
目的探讨口服复锐明在低场磁共振诊断肝外胆管梗阻病变中的应用价值。
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