ATFBn.阿拉伯贸易资金筹措计划署atprep.在；向；达n.基普(老挝货币基本单位)(=att)；[化]砹(极不稳定放射性元素)abbr.密封的(=airtight)abbr.气温(=air temperature)attitnde and behaviour态度行为Atonic urinary bladder无张力性膀胱at irregular intervals不定时的间隔attenuation correction衰减校正at-sea communication海上交流at a moment rs warning突然之间atriopulmonary conduit心房肺动脉管道atrial mechanoreceptor心房机械感受器atraume cardiovascular无损伤止血镊atrial summation beats房性相加搏动