首页erer英英释意

er

['i 'ɑr]
  • abbr. 急诊室(emergency room);大地回路(Earth Return);回波测距(Echo Ranging);工程报告(Engineering Report);外阻(External Resistance)
  • n. (Er)人名;(东南亚国家华语)余;(土)埃尔

英英释意


1. a trivalent metallic element of the rare earth group; occurs with yttrium