F region

F region

美 　英

• un.F区；F层

英汉解释

un.	1. F区 2. F层

英英解释

n.	1. the highest part of the ionosphere that reflects high-frequency radio waves. It is divided into two layers, the F1, which extends upwards from 180 km (112 mi) and is present only during the day, and the F2, extending upwards from 300 km (186 mi).

例句

Plasma irregularities are ubiquitously existed in the ionosphere, including E region and F region.

电浆不规则体普遍发生于电离层中，包含E层及F层。

Daytime vertical and zonal velocities from 150-km echoes: Their relevance to F-region dynamics

来自150公里回波的白天垂直和带状速率：与F区域动力学的关系