ADU=Automatic Dialing Unit 自动拨号装置adabbr.广告 (=advertisement)abbr.公元(=Anno Domini)Adrenal glands肾上腺Adrenomedulion肾上腺髓质素ad valorem taxn.从价税Adriatic Force亚得里亚海部队adfrontal area傍额片adrenoerythrin肾上腺红素Adrenal artery肾上腺动脉Adrenal masses肾上腺占位adiabatic wall绝热壁admantine spar刚玉