记忆方法
将“ionosphere”分解为“ion”（离子）和“sphere”（球层），记忆为“离子球层”。想象地球周围的这个层充满了带电的离子，就像一个充满电荷的气球一样漂浮在空中。这样的联想可以帮助记忆这个词的含义——指地球外层大气中充满电离气体的一层。
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中文词源
ionosphere 电离层
iono-,离子，sphere,球体，范围。引申词义电离层。
英语词源
- ionosphere (n.)
- 1926, from ion + sphere. Coined by Scottish radar pioneer Robert A. Watson-Watt (1892-1973). So called because it contains many ions.
权威例句
- 1. 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.
- 2. Its upper limit is determined by the conditions in the ionosphere.
- 其上限由电离层的状态而决定.
- 3. 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.
- 4. Their main limitation is that they are incapable of rising to the ionosphere.
- 他们主要局限性是不能上升到电离层.
- 5. The SPS was also capable of causing physical changes in the ionosphere.
- 太阳能卫星还能够在电离层中引起物理改变.