In order to obtain a more uniformity flow of the dc arc plasma, the large-scale arc hollow electrode plasma generator with an outer magnetic field is designed in this paper.

为了获得比较均匀的大面积直流电弧等离子流，设计了一种利用外磁场驱动电弧旋转的等离子发生器。

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ConclusionUnder the introduction of the outer magnetic field, the modified magnetic nanoparticles loaded CDDP could be collected within the targeting tumor and efficiently exert its antitumor effect.

结论载顺铂磁性纳米药物在体外磁场的引导下能聚集于肿瘤组织，发挥良好的抗肿瘤生物学效应。

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The Earth's magnetic field is generated as the molten iron of the Earth's outer core revolves around its solid inner core; when surges in the molten iron occur, magnetic tempests are created.

地球磁场是由地球外核的熔铁围绕固体内核旋转而产生的；当铁水激增，就会发生磁暴。

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The metal returns up the outer cylinder, and electric currents create a magnetic field.

BBC: Planet Earth

The inner core, made of very pure, solid iron, rotates along with the outer core, dragging the Earth's magnetic field with them.

BBC: Earth's wobbles reveal deep secrets

The research could help test simulations of how the outer, fluid core generates the Earth's magnetic field, which shields our planet and the teeming life on it from harmful cosmic rays.

BBC: NEWS | Science/Nature | Earth's core runs ahead of crust