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temper hardening
compr. 二次硬化
met. 回火硬化
tech. 淬火硬化
temper-hardening [ˌtεmpə'hɑːdnɪŋ, -pər'hɑːrd-]
gen. 回火硬化; 冷轧硬化
temper- hardening
: 3 phrases in 2 subjects
Metallurgy2
Technology1