硬化

• The man is getting old and his joints are stiff .
  老人年纪大了，关节也硬化了。
• We call this rise in strength "age hardening. "
  这种强度的增加我们称为“时效硬化”。
• The material in the large plastic zone has been hardened .
  在大塑性区内材料已经硬化。
• The wires usually have a tendency toward crystallization and corrosion .
  挂线通常容易硬化和腐蚀。
• The lack of deep hardening in these alloys negates their use .
  这些合金缺乏深层硬化能力使它们无法利用。
• The plastic was poured into the mold and left to set until it was firm .
  塑料被注入模子后，便放在一边让它慢慢凝结硬化。
• Poverty hardened my heart, and my own necessities made me regardless of anything .
  贫困硬化了我自己的困苦使我不顾一切了。
• This mixture is placed into a suitable mould, compacted, and allowed to harden .
  这种拌合料灌入合适的模框中，振捣压实，让它硬化。
• Their argument is based on the plastic work wp being the controlling factor in hardening .
  他们的论点是基于在硬化中的塑性功Wp是可控制的因子。
• Excess fluoride produces osteoscherosis, the first signs of which appear in the vertebrae .
  过多的氟化物可能产生骨硬化，其第一个征兆出现在脊椎。