IAWn.国际妇女同盟IAabbr.间接寻址（=Indirect Addressing）abbr.信息保障（=Information Assurance）IAEA International Atomic Energy Agency国际原子能机构IAB Internet Architecture board Internet体系结构委员会iatrogenic adrenal cortical insufficiency医原性肾上腺皮质功能不全IACA International Air Carrier Association国际航空公司协会IAP Indonesia Additional Premium Surcharges印尼港口附加费iAgricultural intemet information resources农业网络信息资源IAG International Association of Geodetical国际测地协会IAA-International Motor Show Passenger Cars国际机动客车展IABA International Amateur Boxing Association国际业余拳击协会IAAF International Amateur Athletic Federation国际业余田径联合会