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回火钢
met. tempered steel
回火 〔还原〕钢
met. tempered steel
回火钢
tech. tempering steel
回火淬硬
archit. tempered steel
回火 钢: 30 phrases in 7 subjects
Construction2
Mechanics1
Metallurgy16
Nautical1
Oil / petroleum1
Shipbuilding1
Technology8