AFCn.音频变换AFabbr.空军(=air force)abbr.音频(=audio frequency)AF multiplex system音频多路系统afistolochic acid A马兜铃酸affin transformation仿射变换afforestation method造林方式affinal relationship姻亲关系afine herd of horses马群良好Aflalfa mosaic virus苜蓿花叶病毒affiliative behavior结交行为AFC correction ratio自动频率控制校正率Afforestation plants绿化植物