cylinder surface magnetic field strength 筒体表面磁感应强度
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。
These magnetic forces are monstrous when compared with the magnetic field strength of our planet — which measures in at less than 1 gauss at the Earth's surface.
比起地球表面上不到1高斯的的磁场强度这些磁场大的惊人。
For a sunspot to form on the solar surface, the magnetic field needs to attain a certain strength to push the surface plasma aside, exposing the solar interior as a cool spot — a sunspot.
在太阳表面，磁场强度必须强到能推开表面的等离子体，将温度较低太阳内部的暴露在外，形成一个太阳黑子。
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