reductionn.减少;降低;减价;(化学)还原反应;(数学)约分
reduction of train pipe pressure列车管减压量
reduction of runoff and sediment减水减沙
reduction to standard conditions归算至标准条件
reduction factor of soil strength强度折减系数
reduction of earthquake disasters防震减灾
reduction to a common denominator通分
reduction of cross sectional area断面压缩率,断面收缩率
reduction of detection efficiency检波效率降低