normal-temperature phosphorization

• 常温磷化

normal-temperature phosphorization的用法和样例：

例句

1. Processes for room temperature blackening and phosphating of steel as well sd their generality and individuality are described.Formulaes are given.
   阐述了钢铁常温发黑及常温磷化工艺及其共性与个性，并提供了工艺配方。