地磁场

As a result that this design, on the one hand, protected microwave system better, on the other hand, it made the microwave transmit efficiently; Using triangle copper plane to couple rectangle wave-guide can make the microwave transmission efficiency reach as high as 92%; Adjusting the magnetic electric current can realize the changes of the magnetic profiles.

这种设计，一方面能很好地保护微波系统，另一方面又能使微波高效地馈入，效率高；同时采用三角形均铜片的耦合矩形波导的设计，使微波转换功率达92%；磁场分布的设计上，通过改变磁场线圈电流来实现，当磁场线圈电流减小时，ECR 区位置朝微波窗口方向移动，将更有利于提高微波的吸收。

Simulation results also show that saddle-shaped distributed AMF can more effectively inhibit constriction of vacuum arc.

对于小电流扩散态真空电弧，重点仿真分析不同电弧电流与不同纵向磁场对其关键特性的影响，部分仿真结果进行了实验验证；对离子处于超音速流动的收缩态真空电弧的仿真表明，真空电弧的磁收缩主要是由于霍尔效应引起的，离子温度和电子温度沿轴向先增大后减小，马鞍形分布的纵向磁场能够更有效地抑制真空电弧的收缩，而且阴极斑点分布对真空电弧特性也有着显著的影响；对离子处于亚音速流动状态的大电流真空电弧的仿真表明，部分等离子体不能到达阳极而损失，马鞍形分布的纵向磁场能够更有效地抑制电弧等离子体的损失，同时能使阳极电流密度和能流密度的分布更加均匀。

In addition, the remanent magnetization vector field can not be transformed into potential field in general.

对地磁场的观测是在地表或卫星高度这样的球面上完成的，且岩石层的剩余磁化强度矢量场一般不能转换为位势场，因此需要研究球面各向同性随机矢量场。

When the magma cools and solidifies,volcanic rock. Reversals of the field give rise to a series of magnetic

岩浆冷却并凝固下来后，地磁场的方向和磁极被保留在磁化了的火山岩中。

A total of 142 sties, 1155 paleomagnetic samples were collected from the Mesoproterozoic successions and Late Jurassic Tiaojishan Formation in Jixian, Xinglong and Kuancheng areas, North China Block.

在各岩石单元普遍存在的低温分量方向在地理坐标系下与现代地磁场方向接近，是现代场重磁化的结果。9 个高温分量受到后期重磁化或构造扰动的影响。

Has 26 production lines and 1,350 sets of measuring, testing equipment, and from the United States introduced a plug-in automatic machines, radiation characteristics tester, also from Japan, Chi measurement company and the Netherlands focus on the introduction of Philips signal source, computer on-line tester, computer And software, color analyzer, CRT special tooling, such as artificial magnetic field to test, test and measurement equipment.

拥有26条生产线和1350余台测量、试验仪器设备，并从美国引进了自动插件机，辐射特性测试仪，还从日本芝测公司和荷兰菲利普公司引进集中信号源、电脑在线测试仪、计算机及软件、彩色分析仪、CRT专用工装，人造地磁场等各种检验、测量和试验设备。

Using IGRF(International Geomagnetic Reference Field) workout by IAGA (International Association of Geomagnetism and Aeronomy), this paper investigates the geomagnetic field in the 20th century.

利用IAGA（国际地磁与高空物理学协会）编制的IGRF研究了20世纪地磁场变化规律。

Through experimenting,the influence of body s magnetization phenomenon On the geomagnetism turns sensor is studied.

通过实验研究了弹体在地磁场中的磁化现象对地磁式转数传感器的影响，试验结果表明，在给定的试验条件下，传感器被屏蔽后转数传感器输出信号的幅值衰减了61。

The predigested geomagnetism model was used for the emulational calculation of the precision.

利用地磁场简化模型进行了精度仿真计算。

Firstly, we introduced the method of correlation analysis of moving random pattern into Geomagnetism in order to overcome the weakness of available methods on westward drift studies.

首先，本文针对现有的研究西漂方法存在的不足，从无线电科学中引进了移动变形图案相关分析方法，并对该方法进行了检验和修正，使其能同时给出地磁场的漂移速度和强度变化系数。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。