cold brittleness

例句：

1. 1. The ice crystals formed on the surface of the lake were very cold brittleness.
   湖面上形成的冰晶非常冷脆。
2. 2.The new material has a high cold brittleness, which makes it difficult to work with.
   这种新材料的冷脆性很高，使得加工起来很困难。
3. 3. The researcher found that the cold brittleness of the material had a significant impact on its mechanical properties.
   研究人员发现，材料的冷脆性对其机械性能有显著影响。