crucible steel
A high-grade steel, used in tools and dies, originally made by fusing wrought iron and charcoal in a crucible.
Third-person singular simple present indicative form of put to sleep
Synonym of thespian
(metrology) An SI unit of electrical current equal to 10⁻⁹ amperes. Symbol: nA
博物館の展示には、るつぼで作られた鋼で鍛えられた刃が含まれており、その卓越した硬さと耐摩耗性で知られていました。
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