hard facing
noun
A hard outer or surface layer; (Metallurgy ) a coating of a metal resistant to abrasion applied to another, less resistant, metal; the application of such coatings.
Origin
Mid 19th century.
| 单词 | hard facing |
| 释义 | hard facingnoun A hard outer or surface layer; (Metallurgy ) a coating of a metal resistant to abrasion applied to another, less resistant, metal; the application of such coatings. Origin |
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