英语单词

词典成语诗词造句字典单词小说古文名言

thermosphere

英 ['θɜːməsfɪə]

n. 热大气层；热电离层

英文词源

thermosphere (n.): 1924, from thermo- + sphere.

双语例句

1. The temperature rises rapidly to between 500 k and 2000 k in the region known as the thermosphere.: 在称之为“热层”地区域内,温度很快上升到500K与2000K之间.

2. When solar activity is high, solar extreme ultraviolet rays warm and expand the thermosphere.: 当太阳活动剧烈时, 太阳极端的紫外线会加热并使热大气层扩张.

3. After the thermosphere is the thermopause, which is the outer most boundary of the thermosphere.: 热成层之后是热成层顶, 它是热成层的最外边界.