hot brittlement

例句：

1. 1.The hot brittleness of the material is a significant factor in its performance.
   材料的热脆性是其性能的一个重要因素。
2. 2.The hot brittleness of the material makes it difficult to work with.
   材料的热脆性使得它难以加工。
3. 3. The hot brittleness of the material can be reduced by using a heat treatment process.
   通过热处理过程可以降低材料的热脆性。