A.陽(yáng)極B.陰極C.保護(hù)極D.保持電解槽內(nèi)酸堿度的工具
A.0.1~1A/cm2B.0.2~1A/cm2C.0.3~1A/cm2D.0.5~1A/cm2
A.遠(yuǎn)B.近C.大D.小