For the rest of the day, he worked on the assembly of an explosive device.在那天余下的时间里,他继续组装爆炸装置。The explosive device was timed to go off at the rush hour.爆炸装置被设定在高峰时间引爆。We believe that an explosive device had been left inside a container.我们认为有一个爆炸装置被留在了一只集装箱里。An explosive device detonated on the roof of the building.一个爆炸装置在楼顶爆炸了。