secondary field

It is convenient to consider the magnetic medium as a secondary field source in solving the magnetostatic problems .

在求解域内存在磁性介质的静磁场问题时，将磁性介质视为二次场源是方便的。

Just theoretical basis is concerned , frequency domain electromagnetic method and the time domain electromagnetic method is the same , both are the research of electromagnetic induction secondary field .

就理论基础而言，频率域电磁法和时间域电磁法是相同的，两者都是研究电磁感应二次场的。

A student 's secondary field of study ;

学生所修（所选）的第二专业。

An efficient method has been presented which is named secondary field finite element method for two-dimentional magnetotelluric numerical modeling .

通过计算二次场来进行二维大地电磁数值模拟；

The term " minor " denotes a secondary field of specialization relative to a student 's major .

副修是指学生主修以外的第二项专门学习。

Finally we give examples to show that the forward modeling code calculates directly the secondary field and makes the computation faster with higher calculating accuracy .

最后给出的算例表明，该算法直接计算异常场，计算速度快、精度高。

Using the Wiener-Hopf method , expressions of the secondary field and reflection coefficients are obtained , and Finally the expression of the surface reactance is found .

用Wiener-Hopf法求得了二次场和反射系数，从而求得表面阻抗。

Analysis and comparison the quantitative relationship obtained with the apparent resistivity and apparent polarizability of different conductive mineral content . Discussed the exponential function relationship between attenuation of apparent polarizability in secondary field and conductivity of mineral content .

分析对比得出不同导电矿物含量与视电阻率、视极化率的定量关系，得出了二次场视极化率衰减规律与导电矿物含量为指数型函数关系。

The derivatives of various parameters in IP secondary field are derived from the K-section method of electrical exploration , which is derived from the slope of resistivity curve in primary field , and the IP differential parametric curve method is established .

由一次场电阻率曲线料率导出的K剖面法，引出了激电二次场各参数的导数，从而建立了激电参数微分曲线法。

Secondary Magnetic Field Induced by the Strongly Magnetic Chain in Low Intensity Field and Its Effect

弱磁场条件下强磁性磁链的二次磁场及其作用

The apparent resistivity parameters in direct current IP method and the secondary electric field sampling

直流激发极化法中的视电阻率参数及二次场采样

Denitrification Performance of Aerobic Granule under Secondary Flow Field

二次流场下好氧颗粒污泥体系的脱氮性能

Meanwhile , the relation between the secondary scattering field from one target and the other is derived .

同时还推导了两个目标的二次散射场之间的关系。

Initial geostress field and surrounding rock secondary stress field plays a vital role of construction of tunnel .

初始地应力场及围岩二次应力场对隧道施工起着至关重要的作用。

Synchronous and continuous voltage sampling has been carried out within natural field , primary electrical field and secondary electrical field .

从自然场、一次场、二次场进行所有电极同步连续电压采集，一次采集同时完成多种装置测量。

Such secondary magnetized field can be discovered by interpreting accurate aeromagnetic data processed with neural network method .

利用人工神经网格方法对高精度航磁资料的处理，可以寻找到这种二次磁化场。

Traveling-wave interaction and secondary magnetic field is generated electromagnetic force , which is a straight line to run the basic principles of electric motors .

行波磁场与次级相互作用便产生电磁推力，这就是直线电动机运行的基本原理。

I believe that the magnetic anomaly due to long-period hydrocarbon seeping from hydrocarbon-bearing sedimentary formation is a secondary magnetized field .

笔者认为，含油气沉积岩因长期油气的渗透作用而形成的磁异常是一种二次磁化场。

By contrast , this paper indicates that it is more reasonable to analyze the stability of surrounding rock by considering initial geostress and secondary stress field of surrounding rock excavation .

通过对比发现，在围岩稳定性中考虑围岩初始地应力及开挖二次应力场的影响分析结果更加合理。

The process of tunnel excavation can be simulated and calculation by LS-DYNA program in which the influence of the initial geostress and the secondary stress field of surrounding rock also should be taken into consideration .

利用LS-DYNA计算程序对隧道开挖过程进行模拟计算，并在分析中考虑初始地应力及开挖二次应力场的影响。

The secondary flow field includes complex vortices and shockwave series . It also has interaction by the boundary layer and shockwave , free shearing layer , shockwave , rarefaction wave and heavy gauge separation .

二次喷射流场包含复杂的涡系结构和波系结构，还存在着边界层与激波的相互干扰、自由剪切层、激波、膨胀波和大尺寸分离。

The anomaly of magnetic field ( total field , primary field or the secondary magnetic field ) is caused by the conducting current , and they are mainly based on the conductivity and electrochemical action of the geological target body .

这种磁场（总磁场和一次磁场以及二次极化电流引起的二次磁场）的异常值，均是由地中传导电流引起的，它们主要决定于地质目标的导电性作用及电化学作用。

The author , in the paper , by means of the analysis of stress circle , discusses the characteristics of the secondary stress field which controls the distribution of the splay structures formed by the structural forces of various properties with different directions .

本文通过应力圆分析.探讨不同性质，不同方向的构造形成的局部应力场的特点及分支构造的分布规律。

To eliminate the influence of acoustic feedback of secondary sound field on reference microphone , the acoustic feedback channel has been integrated in the controller design , and so that the stability and noise reduction performance of ANC system is guarantied .

为有效地消减次级声场对参考传声器的声反馈影响，声反馈通道被融合于控制器的设计过程中，以保证ANC系统的稳定性和降噪效果。

Excavation effects , such as secondary stress field , displacement field and failure zone , are simulated with 2D - σ software when the surrounding rocks quality rank change from I to IV. The influences of rock quality on excavation effects are discussed in detail .

而后，运用数值模拟手段研究了岩体质量不同时，洞室群开挖效应&二次应力场、位移场和破坏区的差异，较全面地讨论了岩体质量对洞室群开挖效应的影响。

For hydrodynamic coupling secondary chamber flow field calculation , the above method validates .

同时对液力偶合器辅腔流场也采用同样的方法进行计算。

From 20 century 60 ages to now , it has developed about 40 years in protein secondary structure prediction field .

从上世纪60年代中期至今，蛋白质二级结构预测已经发展了40年的时间，期间涌现出了许多好的预测方法。

Secondary key mirror field . This cell contains the most recently retrieved value for the secondary database key ( optional ) .

辅助关键字镜像字段。此单元格含有数据库辅助关键字（可选）的最近检索值。

If you want to create a non-redundant partition , set the Secondary Paging VIOS field to none .

如果希望设置非冗余的分区，那么把SecondaryPagingVIOS字段设置为none。

The paper makes an analysis of the overexcitation reason , and proposes the thread of transforming the secondary circuit inversion field suppression of the generator , through the transformation , the overexcitation phenomenon of the generator has been effectively avoided .

文章对产生发电机低频过励的原因进行了分析，提出改造发电机逆变灭磁二次回路的思路，通过改造有效地防止了发电机过激磁。