r salt meaning in Chinese

r酸盐
r盐

The nitroso - r salt photometric method for the determination of cobalt content
盐光度法测定钴量
Nickel base alloy powder - determination of cobalt content - nitroso - r salt spectrophotometric method
盐分光光度法测定钴量
Nickel base alloy powder - determination of cubit content - nitroso - r salt spectrophotometric method
镍基合金粉化学分析方法亚硝基r盐分光光度法测定钴量
Methods for chemical analysis of iron ores - the nitroso - r salt photometric method for the determination of cobalt content
铁矿石化学分析方法亚硝基- r盐光度法测定钴量