引爆装置

It is a threat new only in its form; the land mines and delayed-action bombs dropped on Britain in the early years of the Second World War called for experts from all three Armed Services to defuse or detonate them.

简易爆炸装置只是凭借其组成形式造成了新的威胁；二战初期为了排除和引爆英国境内的地雷和被空投的延时炸弹，几乎动用了海陆空三军所有的专家。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。