chromic pyrophosphate
英
美
焦磷酸铬
双语例句
- In order to improve the traditional pretreatment process of electroless nickel plating on magnesium alloys and determine the plating bath with sulphate as nickel source, the chromic acid pickling is replaced with alkaline pyrophosphate pickling.
为了改进传统的镁合金化学镀镍前处理工艺和确定以硫酸镍为主盐的镁合金化学镀镍的最佳工艺。