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1. Oxford American Dictionary

   case-harden

   • IPA[ˈkāsˌhärd(ə)n]

   美式

   • v.
     harden the surface of (a material)；give a hard surface to (iron or steel) by carburizing it

   • verb: case-harden, 3rd person present: case-hardens, gerund or present participle: case-hardening, past tense: case-hardened, past participle: case-hardened

2. • 釋義
   • 相關詞

   v.

   動詞

   • 1. harden the surface of (a material) the blades are case-hardened with reinforced backing plates
   • ▪ give a hard surface to (iron or steel) by carburizing it the grade of steel was unsuitable for the type of heat treatment process used to case-harden the gears
   • ▪ make (someone) callous or tough years of surgical experience did not case-harden him to suffering

   case-hardened

   • adj.
     (of a material) having a hard surface: case-hardened sandstones

   Oxford American Dictionary

   case-hardened

   • adj.
     (of a material) having a hard surface: case-hardened sandstones

   Oxford Dictionary

3. • 更多解釋

   case-harden

   • IPA[ˈkeɪsˌhɑːdn]

   英式

   • v.
     harden the surface of (a material): the blades are case-hardened with reinforced backing plates

   Oxford Dictionary