fracture initiation resistance

例句：

1. 1.The fracture initiation resistance of the material is crucial for its service life.
   材料断裂起始抵抗对它的服役寿命至关重要。
2. 2.The new design has significantly improved the fracture initiation resistance of the material.
   新设计显著提高了材料的断裂起始抵抗。
3. 3. The researchers found that the fracture initiation resistance of the alloy was affected by the cooling rate.
   研究人员发现合金的断裂起始抵抗受到冷却速率的影响。