详细解释:vt. 使无情, 使表面硬化
词型变化:
动词过去式:casehardened过去分词:casehardened现在分词:casehardening第三人称单数:casehardens详细解释:
case.hard.en
v.tr.(及物动词)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.表面渗碳硬化法:通过高温条件下对碳的浅层注入并紧接冷却来使(铁或钢的)表面或外壳硬化To make callous or insensitive.使冷漠或不敏感