随着磁场减弱，太阳黑子的数量会减少到最小值或者说最低点(波谷)，然后太阳的磁场就会反方向运动，开始重新变强。

As the field wanes, the number of sunspots falls to a trough or minimum, at which point the sun's magnetic field reverses direction and starts to regain its strength.

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首先，物质是最弱的，最小的等离子场强些，磁场最强，而且物质覆盖了它所有的频谱，无论上面还是下面。

First of all, matter is the weakest. The smallest plasma field strength, and plasma covers the full spectrum of the matter, above and below it.

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该环形设计保证了杂散磁场和高效，紧凑的封装最小的泄漏。

The toroidal design assures minimal leakage of stray magnetic fields and a highly efficient, compact package.

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