The geomagnetic field varies continuously.
地磁场不断地发生变化。
The geomagnetic field varies continuously .
地磁场不断地发生变化。
Variations in geomagnetic field in western US since last reversal.
在美国西部的变化自去年在地磁场逆转。
The main error sources in the geomagnetic field model were introduced, too.
介绍了地磁场模型误差的主要来源。
It diffused northeastward, which was caused by the upper air winds and geomagnetic field.
受地球重力场和高空风场的影响，该不均匀体向东北方向扩散。
There existed tendency anomalies in the basic geomagnetic field before these earthquakes.
震前地球基本磁场出现了趋势性异常。
Formation cause of geomagnetic field is one of the important difficult problems of geophysics.
地磁埸的成因是地球物理学的重大理论难题之一。
The chaotic behavior of the system can be used to simulate the reversals of the geomagnetic field.
并指出系统的混沌特性可以用来模拟地磁场的反转。
In a infinite and empty space the geomagnetic field falls off in strength with the third power of distance.
在无限和真空的空间中，地磁场在强度上随距离3次方而衰减。
For instance the geomagnetic Field, the heat flow, the propagation of seismic waves, the force of gravity, etc.
例如，应用地球物理勘探，可以了解诸如地磁场、热流、地震波的传播和重力等地球物理性质。
Since the geomagnetic field varies periodically on orbit, the dynamics of satellite is a linear periodic system.
由于地磁场的方向在轨道上周期变化，卫星的姿态动力学方程是一个线性周期系统。
The measurement of horizontal component of the geomagnetic field occupies the important position in a lot of fields.
地磁场水平分量的测量在很多领域占重要地位。
Low carbon steel samples were tested under static tension conditions in quest of physical mechanism in geomagnetic field.
为探索磁记忆现象的物理机制，在地磁场环境中，静载拉伸低碳钢板状试件。
The results show that the subway of the city has significant influence for the observation environments of geomagnetic field.
结果显示，城市地铁交通对其周围的地磁观测环境具有较大的影响。
One important finding was that most of the geomagnetic field originates at only four broad regions on the core-mantle boundary.
重要的发现之一，是地球的大部份磁场仅来自地核–函交界面上的四个广大区域。
The scientist revealed that the geomagnetic field surrounding the planet was one of the primary influences of the entire biosphere.
科学家揭露，围绕地球的地磁场是整个生物圈的主要影响之一。
The daily variation in properties of the Earth, such as the temperature or the local geomagnetic field, or the daily change in sunlight.
地球各种特征每天的变化，如温度、局部地磁场每天的变化、以及阳光每天的变化。
Geophysical field - Domains or Spaces contain certain geophysical effect, such as gravitational field, geomagnetic field, geothermal field etc.
指具有一定地球物理效应的区域或空间。如地球内外存在的重力场、地磁场、地电场、地热场、地应力场等。
Weak magnetic signal changes and metal magnetic memory effects of steel tensile samples under the excitation of geomagnetic field were studied.
研究地磁场环境中钢试件在动拉伸载荷作用下表面弱磁信号的变化以及磁记忆效应。
There are many methods to measurement the flying attitude, such as solar attitude angle sensor, high-speed photography and geomagnetic field sensor.
飞行体的姿态测试方法有许多种，如太阳方位角传感器遥测、高速摄影法、地磁传感器等。
The natural geomagnetic field varies over the Earth’s surface between about 0.035 - 0.07 mT and is perceived by certain animals that use it for orientation.
地球表面的天然地磁场幅度在0.035-0.07mT之间不等，它可被某些动物察觉，用其指导方向。
The method of regional geomagnetic field modeling is adopted in order to prepare for the reference map of geomagnetism-aided navigation and positioning.
针对性对地磁辅助导航定位中基准图制备的需要，采用了建立区域地磁场模型的方法。
The magnetic leakage field distribution above linear defects of a tube sample under the geomagnetic field was modeled according to magnetic dipole theory.
利用磁偶极子理论，建立稳恒微弱地磁场作用下管类试件线状缺陷段产生的漏磁场模型。
The content of dreams can be influenced by external factors such as scents, or even the Earth's geomagnetic field, but there seem to be some reoccurring themes.
梦的内容可以受外界因素的影响，诸如气味，甚至会受到地球的地磁场的影响等，然而，梦里似乎存在着一些是重复发生的情节。
The electric field can transfer to F2 region along the geomagnetic field line and by means of the fountain effect it can results in the PSO of the equatorial anomaly.
电场沿磁力线传到F_2层，通过“喷泉效应”引起电离层赤道异常的行星波振荡。
Taking into account properties of the geomagnetic field, a new PD magnetic control law using the feedback information of attitude Angle and attitude rate is developed.
根据极地轨道地磁场变化的特性，利用卫星的姿态角和姿态角速率作为反馈信号，提出了一种采用磁力矩器的比例微分(PD)控制规律设计方法。
Taking into account properties of the geomagnetic field, a new PD magnetic control law using the feedback information of attitude Angle and attitude rate is developed.
根据极地轨道地磁场变化的特性，利用卫星的姿态角和姿态角速率作为反馈信号，提出了一种采用磁力矩器的比例微分(PD)控制规律设计方法。
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