用液-固掺杂及两段还原法制备了氧化钪及铼掺杂的钨粉。
Scandia and rhenium doped tungsten powders were prepared by solid-liquid doping combined with two-step reduction method.
一些厂已采用两段铬酸盐还原法。
Two-stage chromate reduction has been used at several plants.
一些厂已采用两段铬酸盐还原法。
Two-stage chromate reduction has been used at several plants.
应用推荐