缓燃引信

例句：

1. 1. The new design of the anti-aircraft gun has improved its performance significantly.
   新型防空炮的设计显著提高了其性能。
2. 2. The delay in the project's completion has caused significant financial losses.
   项目延期导致重大经济损失。
3. 3. The company's decision to delay production was due to unforeseen technical difficulties.
   公司决定延期生产，是因为遇到了预料之外的技术难题。