| 单词 | Heaviside | 
| 释义 | Word Frequency Heaviside(ˈhɛvɪˌsaɪd) noun  Oliver. 1850–1925, English physicist. Independently of Kennelly, he predicted (1902) the existence of an ionized gaseous layer in the upper atmosphere (the Heaviside layer); he also contributed to telegraphy  | 
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