The effect on morphology of magnetic head by particle size of nano-diamond in polishing process was studied. The surface quality of magnetic head by the polishing process was evaluated.

研究了纳米金刚石研抛液对磁头进行表面研抛时，纳米金刚石悬浮液的粒度对磁头表面形貌的影响，评价了由该种研抛液抛光所形成的磁头基体表面质量。

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The magneto-optic head flies much farther from the disk surface than a magnetic disk head, and the magnetic material is covered with a protective layer of plastic or glass;

光电磁头距离盘面的距离比磁头远，并且磁介质上覆盖有塑料或玻璃的保护层；

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An AMR magnetic head with eliminating harmonics and sinusoidal wave output was designed. This magnetic head is made from AMR thin film material by micro-fabrication technique.

设计了一种消谐波正弦输出的AMR磁头，这种磁头是由amr金属薄膜材料经过微加工工艺制成。

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One challenge would involve creating a magnetic head that could hover over those dots, read their signal and write new data onto the grid.

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One new technique being used by some neuroeconomists is transcranial magnetic stimulation, in which a coil held next to the head issues a low-level magnetic pulse that temporarily disrupts activity in a certain part of the brain, to see if that changes the subject's preferences for example, for a particular food and how much he is willing to pay for it.

ECONOMIST: Neuroeconomics: Do economists need brains? | The

There are other reasons behind the popularity of bobble-head dolls and magnetic sculptures.

CNN: Toy story: Office playthings come of age