ADU=Automatic Dialing Unit 自动拨号装置adabbr.广告 (=advertisement)abbr.公元(=Anno Domini)adrenal crisis肾上腺危象adiabatic path绝热线,绝热曲线adinissibility容许性Adrenal lesion肾上腺病变adrenergdrenic肾上腺的ading location装载站adp microphone压电晶体传声器ad hoc oetwork自组织网络admimistration管理adpromissiones[法] 保证契约