例如地震监测站的地磁变化曲线的记录等。
For example earthquake inspection station magnetic variation curve record and so on.
地磁活动是地球磁场的自然变化，其波动周期为11年。
Geomagnetic activity, the natural variations in Earth's magnetic field, it fluctuates in 11-year cycles.
这种变化与地球磁场曾经发生过的变化相比还算温和的——有时地球磁场会完全翻转，地磁北极和地磁南极会对调。
These changes are mild compared to what Earth's magnetic field has done in the past - sometimes the field completely flips, with the north and the south poles swapping places.
这种变化与地球磁场曾经发生过的变化相比还算温和的——有时地球磁场会完全翻转，地磁北极和地磁南极会对调。
These changes are mild compared to what Earth's magnetic field has done in the past —sometimes the field completely flips, with the north and the south poles swapping places.
此线的东北与西南，地磁湾扰、磁暴急始等短周期事件垂直分量的变化△z呈现反号。
Z (Changes in the Vertical field) for the sudden storm commencements and geomagnetic bays to the northeast and southwest of this line appear opposite in signs.
地磁转换函数的变化已被广泛用于中短期地震预报。
The variations of geomagnetic transfer function have been widely used in the medium short term earthquake prediction.
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。
Weak magnetic signal changes and metal magnetic memory effects of steel tensile samples under the excitation of geomagnetic field were studied.
从全球磁场减去地核主磁场和变化磁场及其感应磁场后，就得到岩石圈磁场，又称地壳磁场，或地磁异常。
The crust magnetic field, or lithospheric magnetic field, can be deduced by subtracting the main field, variation field and its induced counterpart from the total field.
在美国西部的变化自去年在地磁场逆转。
Variations in geomagnetic field in western US since last reversal.
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.
利用地磁场模型资料，计算和分析了公元0 ~ 2000年的地磁场偶极子磁矩和地磁北极位置的长期变化。
With geomagnetic field model records, several kinds of secular variation of geomagnetic dipole moment and the position of the geomagnetic North Pole during the year 0 ~ 2000 a.
利用河北省地磁台1986 ~ 2005年的地磁观测资料，对该地区地磁场长期变化规律进行总结分析。
According to observation data at geomagnetic stations in Hebei Province from 1986 to 2005, we sum up and analyze the laws of the geomagnetic secular variation in this paper.
本文利用1958 ~ 1995年已正式出版的《地磁观测报告》资料对广州地磁台地磁场的长期变化进行分析研究。
According to the observation data at Guangzhou geomagnetic observatory from 1958 to 1995, we summarize the laws of the geomagnetic secular variation in Guangzhou geomagnetic observatory.
测区内未发现有局部地磁长期变化异常。
No anomalous local secular geomagnetic variation has been found in the area.
利用第10代国际参考地磁场模型(IGRF)的资料，研究了地磁位的谐波振幅的纬度分布及其时间变化。
Using the 10th International geomagnetic Reference Field (IGRF) models, the latitudinal distribution of harmonic amplitude and its time-variation of geomagnetic potential are investigated.
特别是短周期的地磁异常变化与地震发生前后的地磁扰动密切相关。
It is closely relationship between the short period geomagnetic anomalies and disturbance before and after the earthquake.
模拟地磁总强度的形态为近直线型，而数字化地磁总强度则有显著的日动态变化。
The change shapes of the imitative data of the geomagnetic total intensity shows a straight line and the one of the digital data appears a daily change.
本文使用地磁短周期转换函数和提取地磁局部异常的方法，对菏泽5.9级地震前后地磁场的变化进行了再研究。
Using the short-period conversion function and extracting local anomaly from the geomagnetic field, we have re-studied the variation of the geomagnetic field before and after the Heze 5.9 earthquake.
用国际参考地磁场模型（IGRF）分析了地磁场能量在地球内部的分布及其长期变化。
The eighth generation of the International Geomagnetic Reference Filed (IGRF)is used to study distribution of geomagnetic energy in the Earths interior and its secular variations.
说明地磁异常变化是一种有希望的地震前兆现象。
It indicated that the geomagnetic anomaly is a promising phenomenon in the studies of earthquake precursors.
地磁场不断地发生变化。
地磁场不断地发生变化。
在磁性目标探测中用这种方法可以提取出隐藏在变化地磁场中的弱目标信号。
Using this method, the faint object signal hided in the geomagnetic disturbance can be extracted.
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。
The daily variation in properties of the Earth, such as the temperature or the local geomagnetic field, or the daily change in sunlight.
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。
Since the geomagnetic field varies periodically on orbit, the dynamics of satellite is a linear periodic system.
利用许多地磁观测站的资料，地球物理学家对磁场及其变化方式进行数学描述。
Using data from many magnetic observatories, geophysicists can make mathematical representations of the field and how it is changing.
模拟地磁总强度的形态为近直线型，而数字化地磁总强度则有显著的日动态变化。
The digital data of the geomagnetic total intensity observed more than 2 years and the imitative one are compared with each other.
与此同时，我们还统计了1957与1958年高纬度区31个地磁台在平静时每天的平均日变化。
We have also calculated the mean daily variation of K index of 31 stations of high latitude during the relative magnetic quiet period of year 1957 and 1958.
与此同时，我们还统计了1957与1958年高纬度区31个地磁台在平静时每天的平均日变化。
We have also calculated the mean daily variation of K index of 31 stations of high latitude during the relative magnetic quiet period of year 1957 and 1958.
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