created sense approved 回火 · huíhuǒ · to temper — "Initial import from upstream dictionary"
回火
huíhuǒ
to temper
To improve the strength and toughness of metal by heating it to a specific temperature after quenching and then cooling it.
回, 火
回 (literal) → 回 · huí · to return 火 (literal) → 火 · huǒ · fire
Changed: simplified, traditional, gloss, definition, pinyin, variant pinyin, variants, separable parts, decomposition
created sense approved 回火 · huíhuǒ · backfire — "Initial import from upstream dictionary"
回火
huíhuǒ
backfire
The reverse burning of a flame back into a pipe or engine during welding or combustion; to backfire or flare back.
回 (literal) → 回 · huí · to return 火 (literal) → 火 · huǒ · fire
Changed: simplified, traditional, gloss, definition, pinyin, variant pinyin, variants, separable parts, decomposition