f - region造句

例句与造句

1. The F-region is located directly above the E region ( formerly the Kennelly-Heaviside layer ) and below the protonosphere.
2. In work published in 1968 and 1969 Muggleton studied long-term oscillatory variations in the relationship between F-region ionization and visible solar activity.
3. The "'Coqu?"'and "'Coqu?2 "'( "'Coqu?Dos "') campaign involved a sequence of sounding rocket launches in order to study the dynamics of the E-and F-region ionosphere and increase our understanding of layering phenomena, such as sporadic E layers.
4. It's difficult to find f - region in a sentence. 用f - region造句挺难的