[化学 冶金] 制造软钢 malleable steel: 韧性钢; 展性钢; 展性铜annealed steel; malleable steel: 韧钢malleable mild steel: 韧性低碳钢; 韧性软钢steel making: 钢铁行业direct steel making: 直接炼钢下载手机词典可随时随地查词查翻译