单词	分级设备
释义	同分选机--分级设备--分级机
随便看	universal transverse mercator projection{=utm} universal transverse mercator projection｛=utm projection｝ universal transverse mercator projection｛=utm｝ universal transverse mercator{=utm} universal transverse mercator (u.t.m.) coordinates universal transverse mercator (u.t.m.) grid universal transverse mercator (utm) projection universal tree domain universal trim universal trunk universal truth universal turing machine universal type universal underwater mobot universal unification universal validity universal valve universal veil universal velocity distribution universal velocity profile universal vender mark universal vibrograph universal viewfinder universal viscosimeter universal vise