The difficulties stem from the fact that the interaction between elementary particles and fields is really too violent for a satisfactory theory to be set up.

这些困难来源于这样一个事实：基本粒子和场之间的相互作用对于要建立一个符合要求的理论来说显得过于强烈了。

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The energy of the particles and the fields in the magnetosphere can vary by large amounts.

带电粒子的能量大小与磁气圈中的磁场的大小变化极大。

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Van Allen described how the Earth is surrounded by belts of high-energy particles — mainly protons and electrons — that are held in place by the magnetic fields.

范-艾伦描述了地球是任何被高能粒子带(主要是质子和电子)包围着，地球用磁场拉住它们。今天，这些辐射带被称为范-艾伦带。

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The instruments will measure the diffuse mixture of charged particles and fields which exist in the near-vacuum between the Earth and the Sun.

BBC: NEWS | Science/Nature | Chinese-European mission set for launch

The world we see is full of them, but the world of physics, our ultimate arbiter on the nature of things, is made up strictly of colourless fields and particles.

ECONOMIST: Science and history of colour

Powerful and rapidly changing magnetic fields were looking to see tiny particles of water travelling along the larger nerve fibres.

BBC: Scans reveal intricate brain wiring