This estimation model is objectiv e and practical.It is easy to find the indices, periods or components to be imp roved in order to increase green attributes.

• 运用模糊评价原理；对产品的绿色度进行综合评价.；评价方法的客观性强；便于操作；有利于寻找尚需改进的指标、生命周期阶段和产品组成部件；提升其绿色含量