Arrl[电] American RadioRelay LeagueARRabbr.飞机无线电规程(=Aircraft Radio Regulations)arrhythmic detector心律失常检测仪arris-wise paving对角铺砌arrogate to oneself冒称arrears of interest拖欠利息arrhythmia detector心律失常检出器Arrhenius's formulaarrhythmia simulator心律失常模拟仪arrears of dividends拖欠红利Arrhenius's doctrinearranging for system制度设计