The reason for the high temperatures is unknown but thought to be related to the rapidly changing magnetic field loops that channel solar plasma.
其高温的原因至今是个未解之谜，但是人们认为这是与联通太阳的等离子体的快速变化的磁场循环有关。
2
Auroras typically are visible only near Earth's Poles, where magnetic field lines channel charged particles toward the planet.
极光通常只有在靠近地球的南北极才是可见的，在那里磁力线的通道使向着地球的粒子带电。
3
AIM: To study the distribution of the sinusoidally time-varying electromagnetic fields in our single measurement channel of magnetic induction tomography (MIT).