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莱曼α丛
释义
莱曼α丛
Encyclopedia
理学
星系际介质
释
Lyman-α forest
莱曼α丛
在作为背景(距离较远)的类星体光谱中, 由观测者到类星体视线方向之间的星际介质里中性氢所产生的相对弱的莱曼α吸收线信号。又称莱曼α森林。
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radio wavelength band
radio wave penetration method
radio wave propagation
radio wave propagation during reentry
radio wave propagation in the ionosphere
radio wave propagation in tropospheric radio duct
radio wave propagation via the sporadic E layer
radio wave scattering of the solar corona
radio waves propagation mechanism
radio window
radio wind radar
radish
radish seed
radium
radium-223
radium[223Ra]dichloride
radium-226
radium-228
radium-beryllium neutron source
radium isotope hydrogeology
radium standard
RADIUS
radius
radius function
radius-luminosity relation
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