charpy unnotched impact value

例句：

1. 1. Thetest results for the new material showed asignificant improvement in its charpy unnotched impact value compared to the previous version.
   新材料的测试结果显示，其冲击值
2. 2. The engineers were tasked with developing a new design that wouldenhance the charpy unnotched impactvalue of the vehicle.
   工程师们被指派开发一种新的设计，以增强车辆的冲击值
3. 3. The company'sresearch team has been working on improving thecharpy unnotched impact value oftheir products for several years now.
   该公司的研究团队已经努力改进产品的冲击值