killing-efficiency

例句：

1. 1. The new weapon has a killing efficiency that is twice as high as the old one.
   这种新武器的杀伤效率是旧武器的两倍。
2. 2.The military's training program aims to improve soldiers' killing efficiency.
   军队的训练项目旨在提高士兵的杀伤效率。
3. 3. The researcher found that the new technology could significantly enhance the killing efficiency of the weapon.
   研究人员发现，这项新技术可以显著提高武器的杀伤效率。