权威例句
Heavy obscuration in X-ray weak AGNsObscuration and the various kinds of Seyfert galaxiesObscuration of quasars by dust in damped Lyman-alpha systemsX-ray obscuration and obscured AGN in the local universeEnergy Recovery of Secondary ObscurationThe obscuration by dust of most of the growth of supermassive black holes.Star formation and dust obscuration at z~2: galaxies at the dawn of downsizingEarly CT finding in cerebral infarction: obscuration of the lentiform nucleusMid-IR Galaxy Classification Based on Silicate Obscuration and PAH Equivalent WidthUV Continuum Slope and Dust Obscuration from z ~ 6 to z ~ 2: The Star Formation Rate Density at High Redshift