短語(yǔ)詞組短語(yǔ)absorption reduction catalysis method 吸附還原催化法reduction diffusion method 還原擴(kuò)散法reduction melt method 還原熔融法coprecipitation reduction diffusion method 共沉淀還原擴(kuò)散法a reduction order method 降階解法strength reduction factor method 強(qiáng)度折減系數(shù)法digital reduction shadow method 數(shù)字減影法reduction thinking method 化歸思想方法carbothermal reduction nitridation method 碳熱 返回 reduction method