Kennelly-Heaviside layer

短语

[化] 肯讷累-黑维塞德层(即电离层)

词形变化

Kennelly-Heaviside layers 复数 Kennelly-Heaviside layers

释义与例句

n.
  1. 1.

    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.

来源：wiktionary