The mineral is weakly magnetic.

这种矿石有轻微的磁性。

Magnetic coils focus the electron beams into fine spots.

磁线圈将电子束聚焦成细小的点。

A radio signal has both electrical and magnetic properties.

无线电信号既具有电的特性也具有磁的特性。

The block becomes magnetic when the current is switched on.

一通上电流，这块板就会有磁性。

The electrically charged gas particles are affected by magnetic forces.

带电的气体粒子受磁力的影响。

Develop a magnetic brain scanner.

研制一种脑磁扫描仪。

Maybe the rocks are moved by a magnetic force.

也许岩石是被磁力移动的。

Brain structure was studied using 3D magnetic resonance imaging.

利用 3D 磁共振成像技术对脑结构进行了研究。

The store's card reader failed to scan the card's magnetic strip.

这家商店的读卡器未能扫描到卡上的磁条。

The fact that sunspots are magnetic fields accounts for their dark appearance.

太阳黑子是磁场的事实解释了它们的黑色外观。

Astronomers did eventually figure out what sunspots had to do with magnetic fields.

天文学家最终确实发现了太阳黑子与磁场的关系。

When you actually wanna store information on disk, you can actually use magnetic particles.

当你想在磁盘上存储信息时，你可以使用磁粒子。

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。

They were kind enough to send us this magnetic tank which we'll call forth from the computer solutions to a series of problems.

他们很好心地给我们送来了这个磁箱，可以用电脑来解决一系列的问题。

It would allow notations made with a stylus on a page printed with a special magnetic ink to simultaneously appear on a computer screen.

它允许用手写笔在用特殊磁性墨水打印的页面上做记号，同时显示在电脑屏幕上。

Archaeologists also may locate buried remains by using such technologies as ground radar, magnetic-field recording, and metal detectors.

考古学家们还可能利用地面雷达、磁场记录和金属探测器等技术来定位被掩埋的遗骸。

They also offer a set of kitchen utensils like a magnetic saucepan that can be cooked using electromagnetic wave transmission technology.

他们还推出了一系列的厨房用具，比如可以利用电磁波传导技术进行烹饪的磁性炖锅。

Whereas atmospheric storms arise in a matter of hours and last for days, magnetic tempests develop over decades and persist for centuries.

大气风暴出现在几小时内，持续几天，而磁暴形成要几十年，持续几个世纪。

Western Europeans had also developed and put into use the magnetic compass, which helped when clouds obliterated both the Sun and the stars.

西欧人也已经发明并且使用了磁罗盘，当云彩同时遮住了太阳和星星时，它就能起作用。

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。

Now a company in Massachusetts says that by using magnetic brain scans they can determine with 97% accuracy whether someone is telling the truth.

现在，马萨诸塞州的一家公司表示，通过使用磁脑扫描，他们可以以97%的准确率确定某人是否在说真话。

Now, a company in Massachusetts says that by using magnetic brain scans, they can determine with 97% accuracy whether someone is telling the truth.

现在，马萨诸塞州的一家公司表示，通过磁脑扫描，他们可以以97%的准确率确定某人是否在说真话。

That's because magnetic fields reduce the pressure exerted on the gases inside of them, making the spots cooler than the rest of the Sun's surface.

这是因为磁场降低了施加在内部气体上的压力，使得太阳黑子比太阳表面的其他部分温度更低。

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 magnetic pull of the city was hard to resist.

都市的强大魅力难以抗拒。

A thin magnetic stripe (magstripe) is all that stands between your credit card information and the bad guys.

你的信用卡信息和坏人之间只隔着一个薄磁条。

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。