| 1. | The man is getting old and his joints are stiff .
老人年纪大了，关节也硬化了。 |
| 2. | We call this rise in strength "age hardening. "
这种强度的增加我们称为“时效硬化”。 |
| 3. | The material in the large plastic zone has been hardened .
在大塑性区内材料已经硬化。 |
| 4. | The wires usually have a tendency toward crystallization and corrosion .
挂线通常容易硬化和腐蚀。 |
| 5. | 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。 |
| 6. | 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。 |
| 7. | 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。 |
| 8. | 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。 |
| 9. | 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。 |
| 10. | 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。 |
