die reduction angle

例句：

1. 1. The study of the relationship between lifespan and environmental factors is a crucial area of research in biology.
   研究寿命与环境因素之间的关系是生物学中一个关键的研究领域。
2. 2. The team was able to reduce the risk of accidents by implementing strict safety protocols.
   该团队通过实施严格的安全协议，成功降低了事故的风险。
3. 3.The new design aims to minimize the die reduction angle for better fuel efficiency.
   新设计的目标是最小化死重角以提升燃油效率。