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。
For example, magnetic fields certainly are not gradients.
举个例子，磁场就不是梯度。
I want to tell you things about electric and magnetic fields.
我将要讲电场和磁场。
Which suggests we might be able to see magnetic fields in some way.
这说明，我们可能通过某种方式看到磁场。
Normally the galaxy's magnetic fields protect us from that radiation.
正常来说银河的磁力场会保护我们免受这种辐射侵袭。
If you're right, what is the origin of the magnetic fields?
如果你是对的，什么是磁场的起源？
They are fast-spinning stars with extremely powerful magnetic fields.
它们是快速旋转的恒星，其周围有极强的磁场。
Humans are, however, unable to perceive magnetic fields naturally.
然而，人类并非生来就能感知磁场的存在。
You did bring up something about magnetic fields and how they interact.
你提出了关于磁场和它们如何相互作用的一些问题。
Directly detecting the magnetic fields of other stars, however, can be difficult.
然而直接探测其它恒星的磁场是很困难的。
The fields with which we are concerned are the electric and magnetic fields.
我们所涉及的场是电场和磁场。
There are harmonics that occur when two magnetic fields encounter each other.
当两个磁场互相遭遇时会发生谐波。
As a result, the magnetic fields become trapped in "islands," seen here as red orbs.
结果，磁场被困在“孤岛”中，就是这里看到的红色球体。
To measure the lateral variation of a property, such as gravity or magnetic fields.
测量某种性质如重力场或磁场的横向变化。
Magnetic fields can pass through the human body without harming anything.
磁场可以无害地穿过人体。
Magnetic fields can pass through the human body without harming anything.
磁场可以无害地穿过人体。
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