Now, though a novel type of steel has been developed that resists fractures at much lower temperatures, while retaining its strength and toughness-without the need for expensive additives.
2019年6月六级真题（第三套）阅读 Section A
柯林斯高阶英汉双解学习词典释义
N-COUNT
破裂;(尤指)骨折
A fracture is a slight crack or break in something, especially a bone.