单词 | bluing |
释义 | bluing [`blü·iŋ] METALLURGY 1. Also spelled blueing. 2. Formation of a bluish oxide film on polished steel; improves appearance and provides some corrosion resistance. 3. Heating of formed springs to reduce internal stress. 4. A blue oxide film formed on the polished surface of a metal due to extremely high temperatures. PLANT PATHOLOGY See <<blue rot>> |
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