Its upper limit is determined by the conditions in the ionosphere.其上限由电离层的状态而决定.The ionosphere is a complex medium, which is aeolotropy, asymmetry, dispersive and changes randomly with time.电离层是随机时变, 各向异性, 非均匀 、 色散的复杂介质....
The ionosphere is that region of space contatining electrically charged species.电离层是指含有带电物质的空间区域.Its upper limit is determined by the conditions in the ionosphere.其上限由电离层的状态而决定.Rockets and artificial satellites can go fa...