ionosphere
Definition
A layer of the Earth's atmosphere that is ionized and reflects radio waves.
中文 地球大气中被电离并能反射无线电波的一层。
Example
"The radio signal bounced off the ionosphere to reach distant locations."
A layer of the Earth's atmosphere that is ionized and reflects radio waves.
中文 地球大气中被电离并能反射无线电波的一层。
"The radio signal bounced off the ionosphere to reach distant locations."