短语词组短語barium phosphate crown glass 磷酸鋇冕玻璃;氧化鋇dense barium crown glass 特重火石;重鋇冕玻璃coactivated barium crown glass 共激活鋇冕玻璃extra -dense barium crown glass 特重鋇冕玻璃;特重火石 返回 barium crown glass