短語詞組短語quenching and tempering hardness 調(diào)質(zhì)硬度quenching and tempering steels 調(diào)質(zhì)鋼quenching and tempering steel 合金調(diào)質(zhì)鋼direct quenching and tempering 直接淬火回火quenching and tempering treatment 調(diào)質(zhì)處理quenching and tempering processes 淬回火工藝quenching and tempering technology 調(diào)質(zhì)工藝oil quenching and tempering 油淬調(diào)質(zhì) 返回 quenching and tempering