10月, 北朝鲜爆炸了他的第一个由钚制造的核装置.

In October, North Korea exploded its first <em>nuclear</em> <em>device</em> , made using plutonium.

虽然其他非核设备也可能导致电磁脉冲，但核装置带来的危险要大得多，尤其是在高空引爆时。

While other non-nuclear equipment can cause EMPs, the <em>nuclear</em> <em>device</em>s impose a far greater danger, especially when detonated at a high-altitude.

或许还不到一千吨，这听起来似乎很多，但事实上用于核装置则是相当少的。

Perhaps less than a kiloton , which sounds like a lot but is actually small as <em>nuclear</em> <em>device</em>s go.

核装置的大小。核弹的爆炸力越大，受影响的范围愈大。

Size of the device. A more powerful bomb will produce more distant effects.

不像其他的脉冲，核装置引发的高空电磁脉冲可分为三种不同的波形。

And unlike other pulses, nuclear HEMP events can be broken down into three distinct waveforms.

或许还不到一千吨, 这听起来似乎很多,但事实上用于核装置则是相当少的.

Perhaps less than a kiloton, which sounds like a lot but is actually small go.