Aabnormalphenomenon异常现象abnormalsound异声,不正常声音abnormalwear不正常磨耗abrasive磨料abrasivecloth砂布abrasivedisc研磨盘abrasiveresistance耐磨强度abrasivesurface磨耗面abrasivewear磨耗,磨蚀,磨损abrasivewheel砂轮absorbent吸收剂absorptionsystem吸收系统absorption-typerefrigeratingunit吸收式制冷机组absorptivity吸收系数ABSSystem(AutomaticBlockSignalSystem)自动闭塞信号系统acceleratedrelease加速缓解acceleratedreleaserate加速缓解率acceleratedreleasereservoir加速缓解风缸acceleratingpotential加速电压accelerationtransducer加速度传感器accelerator加速器acceleratorvalve加速阀accelerograph加速度仪accelerometer加速度仪accessoryframe辅框accessoryframeassembly辅框组成accessoryofunderframe底架附属件accumulatedkilometrage累计行驶公里数accumulatedmileage累计行驶里数accumulator蓄电池,蓄能器accumulatorbox蓄电池箱AC-DCpowersupply交流-直流供电ACinductorgenerator交流感应子发电机acidaccumulator酸性蓄电池acidbattery酸性蓄电池acidcorrosion酸性腐蚀acidpickling酸洗acidproof耐酸acids