Kennelly-Heaviside layer
名词 n.
英文释义
名词 n.
- A layer of ionized gas occurring between roughly 90–150 km (56–93 mi) above the ground. It reflects medium-frequency radio waves, and thus enables them to be propagated beyond the horizon.
词源
Named after Arthur E. Kennelly and Oliver Heaviside.
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数据来源: Wiktionary