单词	activated alumina
释义	activated alumina noun : a porous highly adsorptive alumina made usually by heating alumina hydrates and used chiefly in drying gases and liquids Word History First Known Use circa 1943, in the meaning defined above
随便看	bowfrontest bowgrace bowhead bowhead whale bowheads bowhunt bowhunted bowhunter bowhunters bowhunting bowhunts Bowie bowie knife bowie knifes bowieae bowieas bowing bowing (to) bowing acquaintance bowing out bowing to bowingly bowings bowk bowkail

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