ALSA abbr. American Land Sailing Association 美国陆地航行联合会; American Law Student Association 美国法律学生联合会; American Lap Swimmers Association (Incorporated) 美国环绕游泳者联合会(有限公司); Ansett Airlines of South Australia 南澳大利亚安塞特航空公司
alt n. adj. 高音(的) n. = Accelerated Life Testing 加速寿命试验(可靠性术语)
ALTA abbr. American Land Title Association 美国土地资格联合会; American Library Trustee Association 美国图书馆保管员联合会; Army Lawn Tennis Association 部队草地网球联合会; Agricultural Landlords and Tenants Act 农业地主和佃户法案