| 单词 | surface-harden |
| 释义 | > as lemmassurface-harden surface-harden v. Metallurgy transitive to subject to surface hardening. ΚΠ 1861 Repertory Patent Inventions 38 2 These clips if made of steel are tempered, or if of wrought-iron they are case or surface hardened. 1929 R. H. Sherry Steel Treating Pract. vi. 173 Nuts, bolts, washers, and other parts for which low-carbon steel is commonly used can be surface hardened to a degree sufficient for the service required. 2001 R. W. Cahn Coming of Materials Sci. vi. 245 Characterisation of materials surface-hardened by ion-implantation. < as lemmas |
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