n.环绕地球之辐射层（其厚度达4万英里）；磁性层；磁圈

The Earth's magnetosphere protects us from harmful solar radiation and charged particles.
地球的磁层保护我们免受有害的太阳辐射和带电粒子的影响。
The Van Allen belts, a part of the magnetosphere, trap charged particles creating beautiful auroras at high latitudes.
范艾伦带是磁层的一部分，它们困住带电粒子，从而在高纬度地区产生美丽的极光。
Spacecraft must navigate through the magnetosphere to reach other planets or moons, often using magnetic fields as a guidance system.
太空船在进入其他行星或卫星之前，必须穿越磁层，常常利用磁场作为导航系统。
A satellite's instruments can study the behavior of charged particles in the magnetosphere, providing valuable data for space weather forecasting.
卫星上的仪器可以研究磁层中带电粒子的行为，为太空天气预报提供宝贵的数据。
The interaction between the Earth's magnetosphere and the solar wind creates dynamic changes in our protective shield.
地球磁层与太阳风之间的相互作用会使得我们的防护屏障（磁层）动态变化。
The magnetosphere acts as a natural shield, deflecting most of the solar wind's particles away from our planet.
磁层作为一种天然屏障，将大部分太阳风的粒子偏转开，远离我们的星球。
Researchers have observed that during solar storms, the magnetosphere expands and weakens, temporarily exposing Earth to increased radiation levels.
研究人员发现，在太阳风暴期间，磁层会扩张并减弱，使地球暂时暴露于更高的辐射水平之下。
The magnetosphere is not exclusive to Earth; other planets, like Jupiter, also possess powerful magnetic fields and extensive magnetospheres.
磁层并非地球独有，其他行星如木星也有强大的磁场和广阔的磁层。
Scientists are studying how Earth's magnetosphere interacts with the Moon's gravitational field, contributing to our understanding of planetary defense mechanisms.
科学家们正在研究地球磁层如何与月球的重力场相互作用，这有助于我们理解行星防御机制。
The Magnetospheric Multiscale (MMS) mission aims to unravel the complex dynamics within Earth's magnetosphere by observing plasma behavior on multiple scales.
磁层多尺度（MMS）任务旨在通过观察多个尺度的等离子体行为，揭示地球磁层的复杂动态。