...示符 号 钝化(passivation) P 磷化(zinc phosphate treatment) ZnPh 氧化(oxidation) O 硫酸阳极氧化(sulphuric acid anodizing) A(S) 电解着色(electrolytic colouring) Ec 镀覆特征、处理特征表示符号采用相对英文单词的第一个字母的小写，见表4。
双语例句
1
The effect of some common carboxylic acids as well as sulphuricacid concentration on thickness and hardness of medium temperature anodizing film of Al alloy was investigated.