sporadic E-region散块E域;散块E区
the e Arctic region北极地区
E-regionE域
Rectangular E Selection Region矩形选择区域
e 3 regione区
E-region instabilityE层不均匀结构
Fence e Selection Region围栏形选择区域
e 1 regione区
e 1 region gene庚型e区基因
N（名词） a region of the ionosphere, extending from a height of 90 to about 150 kilometres. It reflects radio waves of medium wavelength E电离层 (Also called Heaviside layer, Kennelly-Heaviside layer) → see also ionosphere