recoil chemistry

例句：

1. 1. The new device has a recoil mechanism that makes it easy to use.
   这款新设备有一个回弹机制，使用起来非常方便。
2. 2. In recoil chemistry, the force of the impact is used to measure the strength of the material.
   在回弹化学中，冲击力被用来测量材料的强度。
3. 3. The scientist discovered a new way to make materials with high strength and low recoil.
   这位科学家发现了一种制造高强度低回弹材料的新方法。