ionosphere例句
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 far above the
ionosphere.
火箭和人造卫星能够到达电离层以上极远的地方.