double impulse

例句：

1. 1. Thecar's engine has a double impulsesystem that can accelerate and brake quickly.
   这辆车的引擎有一个双冲系统，可以快速加速和刹车。
2. 2. Thedouble impulse of the windon the leaves caused them toflutter in the breeze.
   风吹在树叶上的双冲力使它们在风中摇曳。
3. 3. The double impulse of thenew technology was too much for the companyto handle.
   新技术的双重冲击对公司来说太大了，无法处理。