Messenger will explore the surface of Mercury, its crust, its atmosphere and even its magnetic field.
“信使号”将探索水星的表面、地壳、大气，甚至其磁场。
Geomagnetic activity, the natural variations in Earth's magnetic field, it fluctuates in 11-year cycles.
地磁活动是地球磁场的自然变化，其波动周期为11年。
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。
When the magnetic field is at its strongest, and sunspots at their most plentiful, they cluster close to the equator.
当磁场最强，太阳黑子最丰富的时候，它们会聚集在赤道附近。
This metallic core gives Earth its characteristic magnetic field, which has played an extremely important role in the history of our planet.
这种金属核赋予地球特有的磁场，在地球的历史上发挥了极其重要的作用。
In 1832, the year of Michael Faraday's discovery that a changing magnetic field produces an electric field, a young French engineer patented a new and more efficient waterwheel.
1832年，也就是迈克尔·法拉第发现磁场变化会产生电场的那一年，一位年轻的法国工程师为一种新的、效率更高的水车申请了专利。
The Earth's magnetic field is generated as the molten iron of the Earth's outer core revolves around its solid inner core; when surges in the molten iron occur, magnetic tempests are created.
地球磁场是由地球外核的熔铁围绕固体内核旋转而产生的；当铁水激增，就会发生磁暴。
Up until now we've waited until we see the magnetic field erupting.
目前，我们一直在等待太阳磁场的爆发。
It is because a conductor carrying is surrounded by a magnetic field.
这就是因为载流导体周围有一磁场。
At the end of a cycle, the magnetic field rapidly reverses its polarity.
在周期的最后，磁场的两极快速翻转。
The interplanetary magnetic field fluctuates greatly in magnitude and direction.
行星际磁场在不同的星等和方向强度差别很大。
The Earth's magnetic field is generated by currents flowing in Earth's outer core.
地球磁场由地球外核中的电流产生。
The red threadlike filaments are composed of cool gas suspended by a magnetic field.
红色细长的丝状体是由冷却下来的气体组成，气体处于磁场中。
As on Earth, the particles are channelled to the poles by the planet's magnetic field.
在地球，原子内粒子在地球磁场的作用下呈流状分布在两极。
The Earth's magnetic field is roughly like that of a bar magnet, with two opposite poles.
地球的磁场大致就像是一块拥有两个磁极的磁铁。
The most plausible explanation involves electrical currents along the magnetic field lines.
最合理的解释涉及到沿着磁场线的电流。
These electrons have a property called spin which may be sensitive to Earth's magnetic field.
这些电子有着自旋特性，可能对地球磁场具有敏感性。
Mars has no magnetic field, so the surface is constantly bombarded by radiation from the sun.
火星没有地磁场，因此地表经常遭受太阳辐射的袭击。
Solar flares send out bursts of electromagnetic energy that strike the Earth's magnetic field.
耀斑的爆发将产生大量的粒子，粒子流将挟带大量能量轰击地球磁场。
Power is transferred to each device by direct contact rather than via a magnetic field and induction.
这样就能直接给设备供电，无需借助磁场和感应电流。
Planetary scientists have also long blamed Venus's sterility on the lack of an internal magnetic field.
行星科学家长期以来也曾将金星的贫瘠归咎于缺乏一个内部磁场。
The machine's electrified copper coils generate a weak magnetic field, causing the helium atoms to rotate.
机器为铜线圈充电，形成一个弱磁场，使得氦原子旋转。
For example, the honeycomb is somehow aligned to the earth's magnetic field, though no one quite knows why.
例如，蜂巢总是和地球磁场在一条线上，尽管没人知道为什么。
"We've always known that the Earth's magnetic field is variable, constantly evolving in time," Raymond said.
“众所周知地球的磁场是变化的，无时无刻不在变化”雷蒙德教授说。
Researchers also discovered that the planet's magnetic field is shifted about 300 miles north from the equator.
研究人员还发现，水星的磁场从赤道向北偏转了大约300英里。
Other instruments will analyze surface chemistry, examine the magnetic field, and investigate radiation environments.
其他的仪器会分析表面的化学物质，检测磁场，以及调查辐射环境。
Recently, they were packaged with fiber optics for detecting the light signals that register magnetic field strength.
目前，它们被封装进检测光信号的光学器件，以记录磁场的强度。
Recently, they were packaged with fiber optics for detecting the light signals that register magnetic field strength.
目前，它们被封装进检测光信号的光学器件，以记录磁场的强度。
应用推荐