彈箕級(jí)硬加工 extra-hard cold work: 特硬級(jí)冷加工half-hard cold work: 全硬級(jí)冷加工hard cold work: 硬級(jí)冷加工extra-spring-hared cold work: 特彈簧硬冷加工hard at work, work hard: 工作努力下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯