case-hardening的用法和样例：
词汇搭配
- cyanide case-hardening 氰化硬化
- case-hardening furnace 箱式渗碳炉
- nitrogen case hardening 表面渗氮淬火...
- case hardening 表面硬化
- cyanide case hardening 氰化
- case-hardening steel 渗碳钢
- carbon case hardening 渗碳硬化
- case hardening steel 渗碳用钢
- case-hardening drying [化] 表面硬化...
- case-hardening carburizer 表面硬化渗碳剂...
- austemper case hardening 等温淬火表面硬化...
