reduction box减速箱reductionn.减少；降低；减价；(化学)还原反应；(数学)约分Reduction of elephantiasis of scrotum阴囊象皮病复位术Reduction of overcorrection of ptosis睑下垂矫正过度复位术Reduction in monthly repayment amount减少每月还款额Reduction osteoplasty of facial bones面骨复位成形术reduction of nighttime pulse pressure夜间脉压下降率reduction of the pollutants discharge污染物减排reduction efficiency of coal hydrogen氢的还原作用率Reduction of closed sesamoid fracture闭合性籽骨骨折复位术Reduction of closed coccygeal fracture闭合性尾骨骨折复位术reduction by lithium aluminium hydride氢化铝锂还原