case hardening

常见例句

双语例句

• Due to their low carbon content, these steels cannot be hardened except by case hardening.
  由于它含有较少的碳，这些钢不能被硬化，只能进行表面硬化。
• This hardness ranges from 900 to 1,100 Brinell, which is considerably higher than that obtained by ordinary case hardening.
  其硬度范围为900 到1，100 布氏硬度，这远高于普通表面硬化所获得的硬度。
• This impervious layer or boundary will retard the free diffusion of moisture. This condition is referred to as case hardening.
  这一不透气的壳层(或边界层)会阻滞水分自由扩散，这种情 形称为表面硬化。
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