self-hardening
形容词 adj.
英文释义
形容词 adj.
- Designating, or pertaining to, any of various steels that harden when heated to above a red heat and cooled in air, usually in a blast of cold air with moderate rapidity, without quenching. Such steels are alloys of iron and carbon with manganese, tungsten and manganese, chromium, molybdenum and manganese, etc. They are chiefly used as high speed steels.
词源
From self- + hardening.
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数据来源: Wiktionary