heliosphere

英 ['hiːlɪəsfɪə] 美 ['hiːliːəˌsfɪə]

• n. 日光层

英英释义

Noun:

1. the region inside the heliopause containing the sun and solar system

例句

用作名词 (n.)

1. The sun has a magnetic field, the heliosphere, which envelops our entire solar system.
   太阳也有个磁气圈，就是日光层，它包裹了整个太阳系。