And it's a problem for, so it's a very powerfulexplosive and you can't see it in X-rays.
它带来了很大的问题，因为它的爆炸力很强，而且在X射线下看不到。
2
Officials believe the three were planning attacks with portable but powerfulexplosive devices like the ones involved in last year's thwarted attack on the New York City subway system.
官员们相信，这3人计划发动一起类似去年在纽约市袭击地铁系统所涉及的便携但威力强大的爆炸装置。
3
In an Arsenal of everyone them them there are explosive flanks, gallons of slippery oil and powerful fire support.