Other fish put out different types of electrical fields, some of which vary a lot more.

其它鱼类发出不同类型的电场，其中一些的电场很不相同。

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The use of electrical fields to separate charged biomolecules such as DNA, RNA and proteins.

用电场分离带电荷的生物分子如：dna、RNA和蛋白质。

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These are materials which can translate electrical fields into mechanical stress, or vice versa.

这类物质可将电场和机械压力相互转换。

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This can detect tiny changes in electrical fields from a distance, even through textiles.

ECONOMIST: A big name from the past hopes for a bright future

When using the NovoTTF-100A System, a health care professional places electrodes on the surface of the patient's scalp to deliver low-intensity, changing electrical fields called "tumor treatment fields" (TTFs) to the tumor site.

ENGADGET: Portable brain tumor treatment system kills cancer while you take out the trash

Since then several teams have been trying to make colder antihydrogen and to hold on to it using clever configurations of electrical and magnetic fields.

ECONOMIST: Antihydrogen atoms are captured for the first time