magnetosphere

英 [mæg'niːtəsfɪə] 美 [mæg'niːtəˌsfɪə]

• n. (围绕地球或其他行星等天体的)磁层

详尽释义

n. 名词

1. 磁气圈
2. 【天】磁层
3. 围绕天体的磁性层

英英释义

Noun:

1. the magnetic field of a planet; the volume around the planet in which charged particles are subject more to the planet's magnetic field than to the solar magnetic field

例句

用作名词 (n.)

1. The earth's magnetosphere is at once protective and dangerous.
   地球的磁层既具有保护的功能，却又极其危险。