The action or process of treating steel or steel objects (in later use esp. firearms) so as to produce a protective layer of oxide which imparts a…
| 单词 | θ209433 |
| 释义 | society > occupation and work > industry > working with specific materials > working with metal > [noun] > colouring metal (2) bluing1735 The action or process of treating steel or steel objects (in later use esp. firearms) so as to produce a protective layer of oxide which imparts a… metallochromy1837 The production of prismatic colours on a metal surface by electroplating. Cf. metallochrome, n. 1. |
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