原级：contemn
现在分词：contemning
过去分词：contemned
911查询·英语单词
过去式：contemned
1. Direct determination of MnO, ZnO and Fe_2O_3 contemns in manganese-zinc ferrites by EDXRF analysis EDXRF法直接测定铁氧体中MnO、ZnO和Fe2O3的含量