A (a)相，安[培]a (absolute)絕對的A (accumulator)累加器A (alarm)報警A (automatic)自動的a (axial)軸向的，軸流的A-A (ASEA-Atom)瑞典原子通用公司

　　AAB (accident analysis branch of the USNRC)美國核管理委員會事故分析處AAC (amplitude absorption coefficient)振幅吸收系數AAC (automatic amplitude control)自動振幅控制AACC (American Automatic Control Council)美國自動控制委員會AAE (American Association of Engineers)美國工程師協會AAEC (The Australian Atomic Energy Commission)澳大利亞原子能委員會Aamasul乙二(二硫代氨基甲酸)錳與硫混合物

　　A-amplifier A類放大器，甲類放大器AAP (analyst assistance program)分析員輔助程序AAP (associative array processor)相聯陣列處理機AAS (advanced administrative system)先進管理系統AAS (atomic absorption spectroscopy)原子吸收光譜AAS (automatic addressing system)自動訪問系統AASW (American Association of Scientific Workers)美國科學工作者協會AB (address bus)地址總線

　　abac列線圖，諾謨圖abacus算盤；柱頂級abampere電磁安培(等于10A)abamurus擋土墻，扶墻；支墩塊A-band A波段abandon委付；放棄，拋棄；棄鉆abandoned channel廢棄河道abandoned vehicle廢棄車輛abandonment放棄；廢棄

　　abas列線圖，諾謨圖abate消除，減少，減輕，降低；作廢；磨鈍；回火abatement減少，減輕；消除；抑制，中斷；降壓abatement cost除去成本abatement of diesel exhaust柴油機廢氣的消除法abatement of noise噪聲控制；消除噪聲abatement of pollution消除污染abatement of smoke消減煙霧，除煙，消煙abatement of water pollution水污染的消除abating pollution消除污染abatjour斜片百葉窗，天窗，亮窗；遮陽A-battery A電池[組]，甲電池[組]

　　abat-vent轉向裝置，折流板；固定百葉窗；通氣帽，通風帽abatvoix吸音板，反射板abbertite瀝青abbreviated簡化的，縮寫的，簡縮的abbreviated address call縮短地址調入abbreviated analysis簡易分析abbreviated call letters簡縮呼號abbreviated dialing縮位撥號abbreviated drawing簡圖abbreviated equation簡化方程

　　abbreviated method簡化法abbreviated signal code傳輸電碼，縮寫信碼abbreviation簡寫；縮寫詞，略語；約分ABC初步，入門；基本要素，基礎知識ABC (automatic bandwidth control)自動帶寬控制ABC (automatic bias compensation)自動偏壓補償ABC (automatic binary computer)自動二進制計算機a-b component transformation a-b分量變換abcoulomb電磁制庫侖(等于10Q)

　　ABCS (automatic broadcasting control system)自動廣播控制系統ABD (aseismic bearing device)抗地震軸承裝置abderhalden dryer干燥槍ABDL (automatic binary data link)自動二進制數據鏈接Abel closed cup flash point阿貝爾密閉杯閃點Abel flash point test阿貝爾閃點試驗Abel heat test阿貝爾耐熱試驗Abelian integral阿貝爾積分ABEOJ (abnormal end of job)作業異常終止

　　aberrant異常的aberrant source異常誤差來源aberration相差，偏差；色差；光行差；失常，反常aberration characteristic相差特性aberration curve相差曲線abeyance暫擱；潛態abfarad電磁法拉abhenry電磁亨利abherent防粘劑，防粘材料abhesion阻粘性，失粘性

　　ABH method ABH方法(計算柵元內通量不利因子的方法)abide遵守abide by the contract遵守合同abies oil松節油abietic resin松香樹脂abietin松香脂abietyl松香ability能力，性能ability of bearing taxation負稅能力ability#p#分頁標題#e#