nil ductility temperature

例句：

1. 1. The material has a nil ductility temperature, which means it cannot be deformed by external forces.
   该材料具有无塑性温度，意味着它无法通过外力变形。
2. 2. In the case of metals, the nil ductility temperature is the temperature at which the material becomes brittle and cannot bedeformed.
   在金属的情况下，无塑性温度是材料变得脆性并无法变形的温度。
3. 3. The study of materials with nil ductility temperature is crucial for the development of new materials that can withstand extreme conditions.
   研究具有无塑性温度的材料对于开发能够承受极端条件的新材料至关重要。