hos的翻译，读音
释义：
abbr. 人骨肉瘤细胞（human osteosarcoma cell）；高阶统计量（higher-order statistics）
n a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds
n a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds