The use of magnetic resonance allows energy to be transferred in useful quantities and almost entirely to the device.
利用磁共振能够传输足够使用的能量，并且能量在到达接收器前的耗损量非常小。
We can describe quantities of electric magnetic field in different inertia system, and use Lorentz transformations to educe the transformations between them.
描述电磁现象的场量在不同的惯性系中有不同的量值，利用洛伦兹变换关系式导出它们之间的变换形式。
In South China which lies in low latitudes, there are large quantities of granites and volcanic rocks, whose magnetic fields are different from those in other areas.
处于低纬度的华南发育了大量的花岗岩和火山岩，其磁场特征不同于其他地区。
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