reduction box减速箱reductionn.减少；降低；减价；(化学)还原反应；(数学)约分reduction transformation matrix降阶转换矩阵reduction of stimulus condition刺激条件的减缩reduction of sources and wastes节源减排reduction to common denominator通分reduction of household expenses家用开支的削减Reduction of Heat Island EffectReduction of fracture of larynx喉骨折复位术reduction-oxidation potential氧化还原电位reduction of energy consumption降低能耗reduction in pollutant discharge减排