At the Earth's surface, these tempests can be detected by changes in the strength of the Earth's magnetic field.
在地球表面，可以通过改变地球磁场强度来检测这些风暴。
Since a magnetic field changes the resistance of ordinary metals by only a fraction of a percent, they dubbed this phenomenon "giant magnetoresistance," or GMR.
由于磁场变化对普通金属只会造成远远不到百份之一的电阻变化，这种现象被称为“巨磁电阻”或巨磁阻gmr。
Since a magnetic field changes the resistance of ordinary metals by only a fraction of a percent, they dubbed this phenomenon "giant magnetoresistance, " or GMR.
由于磁场变化对普通金属只会造成远远不到百份之一的电阻变化，这种现象被称为“巨磁电阻”或巨磁阻GMR。
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.
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。
The structure of these particles changes in a magnetic field in a way that produces “interference” colours when light is shone on them.
一定程度上，在磁场中这些粒子的结构发生改变，有光照射时它们会产生“串扰”颜色。
Scientists already knew that the creatures used changes in Earth’s magnetic field to help them tell north from south and steer themselves along the right latitude.
海龟利用地球磁场的变化分辨南北方位，从而指引自己沿正确的纬度迁徙，这对科学家来说并不陌生。
Scientists already knew that the creatures used changes in Earth's magnetic field to help them tell north from south and steer themselves along the right latitude.
海龟利用地球磁场的变化分辨南北方位，从而指引自己沿正确的纬度迁徙，这对科学家来说并不陌生。
These instruments measure tilts int the ground's surface, as well as changes in the magnetic field near active faults . Usually these changes precede the occurrence of some earthquakes.
他们还用各种各样的仪器和方法，通过测量地震前发生的地球物理上的变化，如地表倾斜度和活性断层附近的磁场变化，对地震进行预测。
Thomson found that the electrical resistance of some materials changes when a magnetic field is applied to them. This effect can be used to read back what has been recorded.
他发现有些材料在受到磁场作用时会改变其电阻性，这种效应也可被应用于回读被记录的数据。
But let's not bother.Again, what this equation tells you is that if the magnetic field changes over time then it creates, just out of nowhere, and electric field.
我们就不纠结这种情况了，这个方程告诉你，如果磁场随时间变化，它就会无中生有地产生电场。
When the sun's rotation sweeps this warped surface across the earth, we detect sudden changes in the polarity of the magnetic field.
当太阳的自转使这个波浪形间隔面扫过地球时，我们就会探测到磁场极性的突然反转。
Dr Tyler and Dr Sabaka, who work at the Goddard Space Flight Centre, in Maryland, observe that satellites can detect small changes in Earth's magnetic field induced by the movement of water.
泰勒博士和沙巴卡博士任职于马里兰州的戈达德太空遨游飞翔中心，他们负责观测那些可以或许检测海水流动引起的地球磁场的微小变化的卫星。
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。
Current must change working gap size can make the magnetic field strength and magnetic field gradient simultaneous changes.
电流一定时，改变工作间隙的大小可以使磁场强度和磁场梯度同时发生变化。
The magnetic strength of high pulse magnetic field is high and changes acutely along with time.
由大电流对负载高压放电产生的脉冲强磁场磁场强度高，随时间变化剧烈。
The Earth's magnetic field is constantly changing, and the way, which it changes, also changes.
地球磁场总是在不停地变化，并且其变化的方式也在变化。
But let's not bother. Again, what this equation tells you is that if the magnetic field changes over time then it creates, just out of nowhere, and electric field.
我们就不纠结这种情况了，这个方程告诉你，如果磁场随时间变化，它就会无中生有地产生电场。
The changes of electron and nucleus exchange frequency along with external field in the coupled quantum dot, especially with magnetic field and the horizontal electric field has been given.
我们还计算了在外加场，特别是垂直磁场和水平磁场作用下，电子交换频率、核子交换频率。
Based on the principles of thermodynamics, the changes of Gibbs free energy and melting equilibrium temperature of pure materials caused by magnetization in a high magnetic field were analyzed.
从热力学基本原理出发初步分析了强磁场磁化对纯物质吉布斯自由能和平衡凝固温度的影响。
Objective:To study the relationship between the decrease of viscosity in alcoholic drink treated by magnetic field and the changes of viscosity of alcohol and tapwater in the alcoholic drink.
目的：探讨白酒经磁处理后粘度下降与白酒中乙醇及自来水粘度变化的关系。
If the number of spins in the ring is large, the period of the entanglement changes anomalously with the external magnetic field.
当组成圆环的自旋粒子数较多时，纠缠变化的周期随外加磁场的大小而改变很大。
A ferrous metal pole wheel passing the sensor face changes the magnetic field strength, resulting in an ac voltage being induced in the coil.
当一个铁磁性极轮通过传感器头部的感应磁场时，就会在电感线圈内产生一个交流电压。
The system will enter the energy current phase due to changes in the magnetic field, after an energy current is introduced into the system.
在体系中引入能流后，磁场的变化将会导致系统进入能流相。
The operating conditions in a permanent magnet were analyzed to quantity the magnetic induction changes on the surface with an alternating magnetic field.
针对电机的实际工作环境，研究了不同工作状态的磁体在交变磁场作用下表面磁感应强度随时间的变化。
The looping, gaseous eruptions are linked to changes in the strength of the sun's magnetic field, though the details of how solar prominences form remain an active area of research, Guhathakurta said.
古哈萨·库塔说，这种环状气态喷发与太阳磁场强度变化有关。不过，有关日珥形成的具体细节仍是目前较活跃的研究领域。
When the water NdFeB through high-intensity magnetic field, the occurrence of water molecules chain length and angle changes.
当水通过钕铁硼高强度磁场处理后，水分子链发生长度的变化和角度的变化。
The advantages lie in that the electromagnetic coil turns and turn-to-turn distance can be randomly regulated to generate frequency changes and magnetic field distribution changes.
可任意调节电磁线圈匝数，匝间距离，产 生频率变化磁场分布变化。
The advantages lie in that the electromagnetic coil turns and turn-to-turn distance can be randomly regulated to generate frequency changes and magnetic field distribution changes.
可任意调节电磁线圈匝数，匝间距离，产 生频率变化磁场分布变化。
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