caseharden
caseharden漢語翻譯
caseharden詞型變化
caseharden詳細(xì)解釋
case.hard.en
v.tr.(及物動詞)case.hard.ened,case.hard.en.ing,case.hard.ens To harden the surface or case of (iron or steel) by high-temperature shallow infusion of carbon followed by quenching.表面滲碳硬化法:通過高溫條件下對碳的淺層注入并緊接冷卻來使(鐵或鋼的)表面或外殼硬化To make callous or insensitive.使冷漠或不敏感