service bomb

例句：

1. 1. The military has been using service bombs to test the effectiveness of their new missiles.
   军方一直在使用服务炸弹测试他们的新导弹的有效性。
2. 2.The government has decided to ban the use of service bombs in public places.
   政府决定禁止在公共场所使用服务炸弹。
3. 3.The terrorists used a service bomb to destroy the building and kill several people.
   恐怖分子使用了服务炸弹来摧毁建筑物并杀死了几个人。