单词	metallic packing ring
释义	metallic packing ring 金属密封环
随便看	Independent Expert for El Salvador Independent Exploratory Development independent exporter independent factor independent factor analysis independent factors independent failure independent fault independent federal agency independent feeder independent feed mechanism independent figure independent file facility independent film independent-film independent film criticism independent filmmaker independent finances independent financial adviser independent financial audit independent firing mode independent fission yield independent flight inspection system independent float Independent following the track